Qwen2-VL

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Introduction

After a year's relentless efforts, today we are thrilled to release Qwen2-VL! Qwen2-VL is the latest version of the vision language models in the Qwen model families.

Key Enhancements:

• SoTA understanding of images of various resolution & ratio: Qwen2-VL achieves state-of-the-art performance on visual understanding benchmarks, including MathVista, DocVQA, RealWorldQA, MTVQA, etc.

• Understanding videos of 20min+: with the online streaming capabilities, Qwen2-VL can understand videos over 20 minutes by high-quality video-based question answering, dialog, content creation, etc.

• Agent that can operate your mobiles, robots, etc.: with the abilities of complex reasoning and decision making, Qwen2-VL can be integrated with devices like mobile phones, robots, etc., for automatic operation based on visual environment and text instructions.

• Multilingual Support: to serve global users, besides English and Chinese, Qwen2-VL now supports the understanding of texts in different languages inside images, including most European languages, Japanese, Korean, Arabic, Vietnamese, etc.

Model Architecture Updates:

• Naive Dynamic Resolution: Unlike before, Qwen2-VL can handle arbitrary image resolutions, mapping them into a dynamic number of visual tokens, offering a more human-like visual processing experience.

• Multimodal Rotary Position Embedding (M-ROPE): Decomposes positional embedding into parts to capture 1D textual, 2D visual, and 3D video positional information, enhancing its multimodal processing capabilities.

We opensourced Qwen2-VL-2B and Qwen2-VL-7B with Apache 2.0 license, and we release the API of Qwen2-VL-72B! The opensource is integrated to Hugging Face Transformers, vLLM, and other third-party frameworks. Hope you enjoy!

News

• 2024.08.30: We have released the Qwen2-VL series. The 2B and 7B models are now available, and the 72B model for opensource is coming soon. For more details, please check our blog!

Performance

Image Benchmarks

Benchmark	Previous SoTA (Open-source LVLM)	Claude-3.5 Sonnet	GPT-4o	Qwen2-VL-72B (Coming soon)	Qwen2-VL-7B (🤗 🤖)	Qwen2-VL-2B (🤗🤖)
MMMUval	58.3	68.3	69.1	64.5	54.1	41.1
DocVQAtest	94.1	95.2	92.8	96.5	94.5	90.1
InfoVQAtest	82.0	-	-	84.5	76.5	65.5
ChartQAtest	88.4	90.8	85.7	88.3	83.0	73.5
TextVQAval	84.4	-	-	85.5	84.3	79.7
OCRBench	852	788	736	855	845	794
MTVQA	17.3	25.7	27.8	32.6	26.3	20.0
VCRen easy	84.67	63.85	91.55	91.93	89.70	81.45
VCRzh easy	22.09	1.0	14.87	65.37	59.94	46.16
RealWorldQA	72.2	60.1	75.4	77.8	70.1	62.9
MMEsum	2414.7	1920.0	2328.7	2482.7	2326.8	1872.0
MMBench-ENtest	86.5	79.7	83.4	86.5	83.0	74.9
MMBench-CNtest	86.3	80.7	82.1	86.6	80.5	73.5
MMBench-V1.1test	85.5	78.5	82.2	85.9	80.7	72.2
MMT-Benchtest	63.4	-	65.5	71.7	63.7	54.5
MMStar	67.1	62.2	63.9	68.3	60.7	48.0
MMVetGPT-4-Turbo	65.7	66.0	69.1	74.0	62.0	49.5
HallBenchavg	55.2	49.9	55.0	58.1	50.6	41.7
MathVistatestmini	67.5	67.7	63.8	70.5	58.2	43.0
MathVision	16.97	-	30.4	25.9	16.3	12.4

Video Benchmarks

Benchmark	Previous SoTA (Open-source LVLM)	Gemini 1.5-Pro	GPT-4o	Qwen2-VL-72B (Coming soon)	Qwen2-VL-7B (🤗 🤖)	Qwen2-VL-2B (🤗🤖)
MVBench	69.6	-	-	73.6	67.0	63.2
PerceptionTesttest	66.9	-	-	68.0	62.3	53.9
EgoSchematest	62.0	63.2	72.2	77.9	66.7	54.9
Video-MME (wo/w subs)	66.3/69.6	75.0/81.3	71.9/77.2	71.2/77.8	63.3/69.0	55.6/60.4

Agent Benchmarks

	Benchmark	Metric	Previous SoTA	GPT-4o	Qwen2-VL-72B
General	FnCall[1]	TM	-	90.2	93.1
		EM	-	50.0	53.2
Game	Number Line	SR	89.4[2]	91.5	100.0
	BlackJack	SR	40.2[2]	34.5	42.6
	EZPoint	SR	50.0[2]	85.5	100.0
	Point24	SR	2.6[2]	3.0	4.5
Android	AITZ	TM	83.0[3]	70.0	89.6
		EM	47.7[3]	35.3	72.1
AI2THOR	ALFREDvalid-unseen	SR	67.7[4]	-	67.8
		GC	75.3[4]	-	75.8
VLN	R2Rvalid-unseen	SR	79.0	43.7[5]	51.7
	REVERIEvalid-unseen	SR	61.0	31.6[5]	31.0

SR, GC, TM and EM are short for success rate, goal-condition success, type match and exact match. ALFRED is supported by SAM^[6].

1. Self-Curated Function Call Benchmark by Qwen Team
2. Fine-Tuning Large Vision-Language Models as Decision-Making Agents via Reinforcement Learning
3. Android in the Zoo: Chain-of-Action-Thought for GUI Agents
4. ThinkBot: Embodied Instruction Following with Thought Chain Reasoning
5. MapGPT: Map-Guided Prompting with Adaptive Path Planning for Vision-and-Language Navigation
6. Segment Anything.

Multilingual Benchmarks

Models	AR	DE	FR	IT	JA	KO	RU	TH	VI	AVG
Qwen2-VL-72B	20.7	36.5	44.1	42.8	21.6	37.4	15.6	17.7	41.6	32.6
GPT-4o	20.2	34.2	41.2	32.7	20.0	33.9	11.5	22.5	34.2	27.8
Claude3 Opus	15.1	33.4	40.6	34.4	19.4	27.2	13.0	19.5	29.1	25.7
Gemini Ultra	14.7	32.3	40.0	31.8	12.3	17.2	11.8	20.3	28.6	23.2

These results are evaluated on the benchmark of MTVQA.

Quickstart

Below, we provide simple examples to show how to use Qwen2-VL with 🤖 ModelScope and 🤗 Transformers.

The code of Qwen2-VL has been in the latest Hugging face transformers and we advise you to build from source with command:

pip install git+https://github.com/huggingface/transformers accelerate

or you might encounter the following error:

KeyError: 'qwen2_vl'

We offer a toolkit to help you handle various types of visual input more conveniently, as if you were using an API. This includes base64, URLs, and interleaved images and videos. You can install it using the following command:

pip install qwen-vl-utils

Using 🤗 Transformers to Chat

Here we show a code snippet to show you how to use the chat model with transformers and qwen_vl_utils:

from transformers import Qwen2VLForConditionalGeneration, AutoTokenizer, AutoProcessor
from qwen_vl_utils import process_vision_info

# default: Load the model on the available device(s)
model = Qwen2VLForConditionalGeneration.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct", torch_dtype="auto", device_map="auto"
)

# We recommend enabling flash_attention_2 for better acceleration and memory saving, especially in multi-image and video scenarios.
# model = Qwen2VLForConditionalGeneration.from_pretrained(
#     "Qwen/Qwen2-VL-7B-Instruct",
#     torch_dtype=torch.bfloat16,
#     attn_implementation="flash_attention_2",
#     device_map="auto",
# )

# default processer
processor = AutoProcessor.from_pretrained("Qwen/Qwen2-VL-7B-Instruct")

# The default range for the number of visual tokens per image in the model is 4-16384.
# You can set min_pixels and max_pixels according to your needs, such as a token range of 256-1280, to balance performance and cost.
# min_pixels = 256*28*28
# max_pixels = 1280*28*28
# processor = AutoProcessor.from_pretrained("Qwen/Qwen2-VL-7B-Instruct", min_pixels=min_pixels, max_pixels=max_pixels)

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-VL/assets/demo.jpeg",
            },
            {"type": "text", "text": "Describe this image."},
        ],
    }
]

# Preparation for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)
inputs = inputs.to("cuda")

# Inference: Generation of the output
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text)

Multi image inference

# Messages containing multiple images and a text query
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": "file:///path/to/image1.jpg"},
            {"type": "image", "image": "file:///path/to/image2.jpg"},
            {"type": "text", "text": "Identify the similarities between these images."},
        ],
    }
]

# Preparation for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)
inputs = inputs.to("cuda")

# Inference
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text)

Video inference

# Messages containing a images list as a video and a text query
messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "video",
                "video": [
                    "file:///path/to/frame1.jpg",
                    "file:///path/to/frame2.jpg",
                    "file:///path/to/frame3.jpg",
                    "file:///path/to/frame4.jpg",
                ],
                "fps": 1.0,
            },
            {"type": "text", "text": "Describe this video."},
        ],
    }
]

# Messages containing a video and a text query
messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "video",
                "video": "file:///path/to/video1.mp4",
                "max_pixels": 360 * 420,
                "fps": 1.0,
            },
            {"type": "text", "text": "Describe this video."},
        ],
    }
]

# Preparation for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)
inputs = inputs.to("cuda")

# Inference
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text)

Batch inference

# Sample messages for batch inference
messages1 = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": "file:///path/to/image1.jpg"},
            {"type": "image", "image": "file:///path/to/image2.jpg"},
            {"type": "text", "text": "What are the common elements in these pictures?"},
        ],
    }
]
messages2 = [
    {"role": "system", "content": "You are a helpful assistant."},
    {"role": "user", "content": "Who are you?"},
]
# Combine messages for batch processing
messages = [messages1, messages1]

# Preparation for batch inference
texts = [
    processor.apply_chat_template(msg, tokenize=False, add_generation_prompt=True)
    for msg in messages
]
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=texts,
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)
inputs = inputs.to("cuda")

# Batch Inference
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_texts = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_texts)

🤖 ModelScope

We strongly advise users especially those in mainland China to use ModelScope. snapshot_download can help you solve issues concerning downloading checkpoints.

More Usage Tips

For input images, we support local files, base64, and URLs. For videos, we currently only support local files.

# You can directly insert a local file path, a URL, or a base64-encoded image into the position where you want in the text.
## Local file path
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": "file:///path/to/your/image.jpg"},
            {"type": "text", "text": "Describe this image."},
        ],
    }
]
## Image URL
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": "http://path/to/your/image.jpg"},
            {"type": "text", "text": "Describe this image."},
        ],
    }
]
## Base64 encoded image
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "image": "data:image;base64,/9j/..."},
            {"type": "text", "text": "Describe this image."},
        ],
    }
]

Image Resolution for performance boost

The model supports a wide range of resolution inputs. By default, it uses the native resolution for input, but higher resolutions can enhance performance at the cost of more computation. Users can set the minimum and maximum number of pixels to achieve an optimal configuration for their needs, such as a token count range of 256-1280, to balance speed and memory usage.

min_pixels = 256 * 28 * 28
max_pixels = 1280 * 28 * 28
processor = AutoProcessor.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct", min_pixels=min_pixels, max_pixels=max_pixels
)

Besides, We provide two methods for fine-grained control over the image size input to the model:

1. Specify exact dimensions: Directly set resized_height and resized_width. These values will be rounded to the nearest multiple of 28.

2. Define min_pixels and max_pixels: Images will be resized to maintain their aspect ratio within the range of min_pixels and max_pixels.

# min_pixels and max_pixels
messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "file:///path/to/your/image.jpg",
                "resized_height": 280,
                "resized_width": 420,
            },
            {"type": "text", "text": "Describe this image."},
        ],
    }
]
# resized_height and resized_width
messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "file:///path/to/your/image.jpg",
                "min_pixels": 50176,
                "max_pixels": 50176,
            },
            {"type": "text", "text": "Describe this image."},
        ],
    }
]

Add ids for Multiple Image Inputs

By default, images and video content are directly included in the conversation. When handling multiple images, it's helpful to add labels to the images and videos for better reference. Users can control this behavior with the following settings:

Add vision ids

conversation = [
    {
        "role": "user",
        "content": [{"type": "image"}, {"type": "text", "text": "Hello, how are you?"}],
    },
    {
        "role": "assistant",
        "content": "I'm doing well, thank you for asking. How can I assist you today?",
    },
    {
        "role": "user",
        "content": [
            {"type": "text", "text": "Can you describe these images and video?"},
            {"type": "image"},
            {"type": "image"},
            {"type": "video"},
            {"type": "text", "text": "These are from my vacation."},
        ],
    },
    {
        "role": "assistant",
        "content": "I'd be happy to describe the images and video for you. Could you please provide more context about your vacation?",
    },
    {
        "role": "user",
        "content": "It was a trip to the mountains. Can you see the details in the images and video?",
    },
]

# default:
prompt_without_id = processor.apply_chat_template(
    conversation, add_generation_prompt=True
)
# Excepted output: '<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\n<|vision_start|><|image_pad|><|vision_end|>Hello, how are you?<|im_end|>\n<|im_start|>assistant\nI'm doing well, thank you for asking. How can I assist you today?<|im_end|>\n<|im_start|>user\nCan you describe these images and video?<|vision_start|><|image_pad|><|vision_end|><|vision_start|><|image_pad|><|vision_end|><|vision_start|><|video_pad|><|vision_end|>These are from my vacation.<|im_end|>\n<|im_start|>assistant\nI'd be happy to describe the images and video for you. Could you please provide more context about your vacation?<|im_end|>\n<|im_start|>user\nIt was a trip to the mountains. Can you see the details in the images and video?<|im_end|>\n<|im_start|>assistant\n'


# add ids
prompt_with_id = processor.apply_chat_template(
    conversation, add_generation_prompt=True, add_vision_id=True
)
# Excepted output: '<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\nPicture 1: <|vision_start|><|image_pad|><|vision_end|>Hello, how are you?<|im_end|>\n<|im_start|>assistant\nI'm doing well, thank you for asking. How can I assist you today?<|im_end|>\n<|im_start|>user\nCan you describe these images and video?Picture 2: <|vision_start|><|image_pad|><|vision_end|>Picture 3: <|vision_start|><|image_pad|><|vision_end|>Video 1: <|vision_start|><|video_pad|><|vision_end|>These are from my vacation.<|im_end|>\n<|im_start|>assistant\nI'd be happy to describe the images and video for you. Could you please provide more context about your vacation?<|im_end|>\n<|im_start|>user\nIt was a trip to the mountains. Can you see the details in the images and video?<|im_end|>\n<|im_start|>assistant\n'

Flash-Attention 2 to speed up generation

First, make sure to install the latest version of Flash Attention 2:

pip install -U flash-attn --no-build-isolation

Also, you should have a hardware that is compatible with Flash-Attention 2. Read more about it in the official documentation of the flash attention repository. FlashAttention-2 can only be used when a model is loaded in torch.float16 or torch.bfloat16.

To load and run a model using Flash Attention-2, simply add attn_implementation="flash_attention_2" when loading the model as follows:

from transformers import Qwen2VLForConditionalGeneration

model = Qwen2VLForConditionalGeneration.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct", 
    torch_dtype=torch.bfloat16, 
    attn_implementation="flash_attention_2",
)

Try Qwen2-VL-72B with API!

To explore Qwen2-VL-72B, a more fascinating multimodal model, we encourage you to test our cutting-edge API service. Let's start the exciting journey right now!

Installation

pip install dashscope

Examples

import dashscope


dashscope.api_key = "your_api_key"

messages = [{
    'role': 'user',
    'content': [
        {
            'image': "https://dashscope.oss-cn-beijing.aliyuncs.com/images/dog_and_girl.jpeg"
        },
        {
            'text': 'What are in the image?'
        },
    ]
}]
# The model name 'qwen-vl-max-0809' is the identity of 'Qwen2-VL-72B'.
response = dashscope.MultiModalConversation.call(model='qwen-vl-max-0809', messages=messages)
print(response)

For more usage, please refer to the tutorial at aliyun.

Quantization

For quantized models, we offer two types of quantization: AWQ and GPQ(🤗🤖).

AWQ

One of our recommendations is the usage of AWQ with AutoAWQ. AWQ refers to Activation-aware Weight Quantization, a hardware-friendly approach for LLM low-bit weight-only quantization. AutoAWQ is an easy-to-use package for 4-bit quantized models.

Usage of AWQ Quantized Models with Transformers

Now, Transformers has officially supported AutoAWQ, which means that you can directly use the quantized model with Transformers. The following is a very simple code snippet showing how to run Qwen2-VL-7B-Instruct-AWQ with the quantized model:

from transformers import Qwen2VLForConditionalGeneration, AutoTokenizer, AutoProcessor
from qwen_vl_utils import process_vision_info

# We recommend enabling flash_attention_2 for better acceleration and memory saving, especially in multi-image and video scenarios.
# model = Qwen2VLForConditionalGeneration.from_pretrained(
#     "Qwen/Qwen2-VL-7B-Instruct-AWQ",
#     torch_dtype="auto",
#     attn_implementation="flash_attention_2",
#     device_map="auto",
# )

# default: Load the model on the available device(s)
model = Qwen2VLForConditionalGeneration.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct-AWQ", torch_dtype="auto", device_map="auto"
)

# The default range for the number of visual tokens per image in the model is 4-16384. You can set min_pixels and max_pixels according to your needs, such as a token count range of 256-1280, to balance speed and memory usage.
min_pixels = 256 * 28 * 28
max_pixels = 1280 * 28 * 28
processor = AutoProcessor.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct-AWQ", min_pixels=min_pixels, max_pixels=max_pixels
)

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-VL/assets/demo.jpeg",
            },
            {"type": "text", "text": "Describe this image."},
        ],
    }
]

# Preparation for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)

# Inference: Generation of the output
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text)

Quantize Your Own Model with AutoAWQ

If you want to quantize your own model to AWQ quantized models, we advise you to use AutoAWQ. It is suggested installing the forked version of the package by installing from source code:

git clone https://github.com/kq-chen/AutoAWQ.git
cd AutoAWQ
pip install numpy gekko pandas
pip install -e .

Suppose you have finetuned a model based on Qwen2-VL-7B. To build your own AWQ quantized model, you need to use the training data for calibration. Below, we provide a simple demonstration for you to run:

from transformers import Qwen2VLProcessor
from awq.models.qwen2vl import Qwen2VLAWQForConditionalGeneration

# Specify paths and hyperparameters for quantization
model_path = "your_model_path"
quant_path = "your_quantized_model_path"
quant_config = {"zero_point": True, "q_group_size": 128, "w_bit": 4, "version": "GEMM"}

# Load your processor and model with AutoAWQ
processor = Qwen2VLProcessor.from_pretrained(model_path)
# We recommend enabling flash_attention_2 for better acceleration and memory saving
# model = Qwen2VLAWQForConditionalGeneration.from_pretrained(
#     model_path, model_type="qwen2_vl", use_cache=False, attn_implementation="flash_attention_2"
# )
model = Qwen2VLAWQForConditionalGeneration.from_pretrained(
    model_path, model_type="qwen2_vl", use_cache=False
)

Then you need to prepare your data for calibration. What you need to do is just put samples into a list, each of which is a typical chat message as shown below. you can specify text and image in content field, For example:

dataset = [
    # message 0
    [
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Tell me who you are."},
        {"role": "assistant", "content": "I am a large language model named Qwen..."},
    ],
    # message 1
    [
        {
            "role": "user",
            "content": [
                {"type": "image", "image": "file:///path/to/your/image.jpg"},
                {"type": "text", "text": "Output all text in the image"},
            ],
        },
        {"role": "assistant", "content": "The text in the image is balabala..."},
    ],
    # other messages...
    ...,
]

here, we use a caption dataset only for demonstration. You should replace it with your own sft dataset.

def prepare_dataset(n_sample: int = 8) -> list[list[dict]]:
    from datasets import load_dataset

    dataset = load_dataset(
        "laion/220k-GPT4Vision-captions-from-LIVIS", split=f"train[:{n_sample}]"
    )
    return [
        [
            {
                "role": "user",
                "content": [
                    {"type": "image", "image": sample["url"]},
                    {"type": "text", "text": "generate a caption for this image"},
                ],
            },
            {"role": "assistant", "content": sample["caption"]},
        ]
        for sample in dataset
    ]


dataset = prepare_dataset()

Then process the dataset into tensors:

from qwen_vl_utils import process_vision_info

text = processor.apply_chat_template(
    dataset, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(dataset)
inputs = processor(
    text=text,
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)

Then just run the calibration process by one line of code:

model.quantize(calib_data=inputs, quant_config=quant_config)

Finally, save the quantized model:

model.model.config.use_cache = model.model.generation_config.use_cache = True
model.save_quantized(quant_path, safetensors=True, shard_size="4GB")
processor.save_pretrained(quant_path)

Then you can obtain your own AWQ quantized model for deployment. Enjoy!

GPTQ

Usage of GPTQ Models with Transformers

Now, Transformers has officially supported AutoGPTQ, which means that you can directly use the quantized model with Transformers. The following is a very simple code snippet showing how to run Qwen2-VL-7B-Instruct-GPTQ-Int4 with the quantized model:

from transformers import Qwen2VLForConditionalGeneration, AutoTokenizer, AutoProcessor
from qwen_vl_utils import process_vision_info

# We recommend enabling flash_attention_2 for better acceleration and memory saving, especially in multi-image and video scenarios.
# model = Qwen2VLForConditionalGeneration.from_pretrained(
#     "Qwen/Qwen2-VL-7B-Instruct-GPTQ-Int4",
#     torch_dtype=torch.bfloat16,
#     attn_implementation="flash_attention_2",
#     device_map="auto",
# )

# default: Load the model on the available device(s)
model = Qwen2VLForConditionalGeneration.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct-GPTQ-Int4", torch_dtype="auto", device_map="auto"
)

# The default range for the number of visual tokens per image in the model is 4-16384. You can set min_pixels and max_pixels according to your needs, such as a token count range of 256-1280, to balance speed and memory usage.
min_pixels = 256 * 28 * 28
max_pixels = 1280 * 28 * 28
processor = AutoProcessor.from_pretrained(
    "Qwen/Qwen2-VL-7B-Instruct-GPTQ-Int4", min_pixels=min_pixels, max_pixels=max_pixels
)

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-VL/assets/demo.jpeg",
            },
            {"type": "text", "text": "Describe this image."},
        ],
    }
]

# Preparation for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)

# Inference: Generation of the output
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)
print(output_text)

Quantize Your Own Model with AutoGPTQ

If you want to quantize your own model to GPTQ quantized models, we advise you to use AutoGPTQ. It is suggested installing the forked version of the package by installing from source code:

git clone https://github.com/kq-chen/AutoGPTQ.git
cd AutoGPTQ
pip install numpy gekko pandas
pip install -vvv --no-build-isolation -e .

Suppose you have finetuned a model based on Qwen2-VL-7B. To build your own GPTQ quantized model, you need to use the training data for calibration. Below, we provide a simple demonstration for you to run:

from transformers import Qwen2VLProcessor
from auto_gptq import BaseQuantizeConfig
from auto_gptq.modeling import Qwen2VLGPTQForConditionalGeneration

# Specify paths and hyperparameters for quantization
model_path = "your_model_path"
quant_path = "your_quantized_model_path"
quantize_config = BaseQuantizeConfig(
    bits=8,  # 4 or 8
    group_size=128,
    damp_percent=0.1,
    desc_act=False,  # set to False can significantly speed up inference but the perplexity may slightly bad
    static_groups=False,
    sym=True,
    true_sequential=True,
)
# Load your processor and model with AutoGPTQ
processor = Qwen2VLProcessor.from_pretrained(model_path)
# We recommend enabling flash_attention_2 for better acceleration and memory saving
# model = Qwen2VLGPTQForConditionalGeneration.from_pretrained(model_path, quantize_config, attn_implementation="flash_attention_2")
model = Qwen2VLGPTQForConditionalGeneration.from_pretrained(model_path, quantize_config)

Then you need to prepare your data for calibration. What you need to do is just put samples into a list, each of which is a typical chat message as shown below. you can specify text and image in content field, For example:

dataset = [
    # message 0
    [
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Tell me who you are."},
        {"role": "assistant", "content": "I am a large language model named Qwen..."},
    ],
    # message 1
    [
        {
            "role": "user",
            "content": [
                {"type": "image", "image": "file:///path/to/your/image.jpg"},
                {"type": "text", "text": "Output all text in the image"},
            ],
        },
        {"role": "assistant", "content": "The text in the image is balabala..."},
    ],
    # other messages...
    ...,
]

Here, we use a caption dataset only for demonstration. You should replace it with your own sft dataset.

def prepare_dataset(n_sample: int = 20) -> list[list[dict]]:
    from datasets import load_dataset

    dataset = load_dataset(
        "laion/220k-GPT4Vision-captions-from-LIVIS", split=f"train[:{n_sample}]"
    )
    return [
        [
            {
                "role": "user",
                "content": [
                    {"type": "image", "image": sample["url"]},
                    {"type": "text", "text": "generate a caption for this image"},
                ],
            },
            {"role": "assistant", "content": sample["caption"]},
        ]
        for sample in dataset
    ]


dataset = prepare_dataset()

Then process the dataset into tensors:

from qwen_vl_utils import process_vision_info


def batched(iterable, n: int):
    # batched('ABCDEFG', 3) → ABC DEF G
    assert n >= 1, "batch size must be at least one"
    from itertools import islice

    iterator = iter(iterable)
    while batch := tuple(islice(iterator, n)):
        yield batch


batch_size = 1
calib_data = []
for batch in batched(dataset, batch_size):
    text = processor.apply_chat_template(
        batch, tokenize=False, add_generation_prompt=True
    )
    image_inputs, video_inputs = process_vision_info(batch)
    inputs = processor(
        text=text,
        images=image_inputs,
        videos=video_inputs,
        padding=True,
        return_tensors="pt",
    )
    calib_data.append(inputs)

Then just run the calibration process by one line of code:

model.quantize(dataset, cache_examples_on_gpu=False)

Finally, save the quantized model:

model.save_quantized(quant_path, use_safetensors=True)
processor.save_pretrained(quant_path)

Then you can obtain your own GPTQ quantized model for deployment. Enjoy!

Benchmark

Performance of Quantized Models

This section reports the generation performance of quantized models (including GPTQ and AWQ) of the Qwen2-VL series. Specifically, we report:

• MMMU_VAL (Accuracy)
• DocVQA_VAL (Accuracy)
• MMBench_DEV_EN (Accuracy)
• MathVista_MINI (Accuracy)

We use VLMEvalkit to evaluate all models.

Model Size	Quantization	MMMU	DocVQA	MMBench	MathVista
Qwen2-VL-7B-Instruct	BF16 (🤗🤖)	53.77	93.89	81.78	58.20
	GPTQ-Int8 (🤗🤖)	53.00	93.94	82.38	57.90
	GPTQ-Int4 (🤗🤖)	52.55	93.16	81.27	60.30
	AWQ (🤗🤖)	53.66	93.10	81.61	56.80
Qwen2-VL-2B-Instruct	BF16 (🤗🤖)	41.88	88.34	72.07	44.40
	GPTQ-Int8 (🤗🤖)	41.55	88.28	71.99	44.60
	GPTQ-Int4 (🤗🤖)	39.22	87.21	70.87	41.69
	AWQ (🤗🤖)	41.33	86.96	71.64	39.90

Speed Benchmark

This section reports the speed performance of bf16 models, quantized models (including GPTQ-Int4, GPTQ-Int8 and AWQ) of the Qwen2-VL series. Specifically, we report the inference speed (tokens/s) as well as memory footprint (GB) under the conditions of different context lengths.

The environment of the evaluation with huggingface transformers is:

• NVIDIA A100 80GB
• CUDA 11.8
• Pytorch 2.2.1+cu118
• Flash Attention 2.6.1
• Transformers 4.38.2
• AutoGPTQ 0.6.0+cu118
• AutoAWQ 0.2.5+cu118 (autoawq_kernels 0.0.6+cu118)

Note:

• We use the batch size of 1 and the least number of GPUs as possible for the evalution.
• We test the speed and memory of generating 2048 tokens with the input lengths of 1, 6144, 14336, 30720, 63488, and 129024 tokens.
• 7B (transformers)

Model	Input Length	Quantization	GPU Num	Speed(tokens/s)	GPU Memory(GB)
Qwen2-VL-7B-Instruct	1	BF16	1	39.02	16.07
		GPTQ-Int8	1	31.60	10.11
		GPTQ-Int4	1	42.76	7.20
		AWQ	1	32.08	7.07
	6144	BF16	1	38.75	21.56
		GPTQ-Int8	1	31.31	15.61
		GPTQ-Int4	1	39.75	12.69
		AWQ	1	32.66	12.56
	14336	BF16	1	30.65	29.07
		GPTQ-Int8	1	27.96	23.11
		GPTQ-Int4	1	29.72	20.20
		AWQ	1	31.42	20.07
	30720	BF16	1	19.53	44.08
		GPTQ-Int8	1	18.37	38.13
		GPTQ-Int4	1	19.15	35.22
		AWQ	1	19.95	35.08

• 2B (transformers)

Model	Input Length	Quantization	GPU Num	Speed(tokens/s)	GPU Memory(GB)
Qwen2-VL-2B-Instruct	1	BF16	1	35.29	4.68
		GPTQ-Int8	1	28.59	3.55
		GPTQ-Int4	1	39.76	2.91
		AWQ	1	29.89	2.88
	6144	BF16	1	36.58	10.01
		GPTQ-Int8	1	29.53	8.87
		GPTQ-Int4	1	39.27	8.21
		AWQ	1	33.42	8.18
	14336	BF16	1	36.31	17.20
		GPTQ-Int8	1	31.03	16.07
		GPTQ-Int4	1	39.89	15.40
		AWQ	1	32.28	15.40
	30720	BF16	1	32.53	31.64
		GPTQ-Int8	1	27.76	30.51
		GPTQ-Int4	1	30.73	29.84
		AWQ	1	31.55	29.84

Deployment

We recommend using vLLM for fast Qwen2-VL deployment and inference. You can use this fork (we are working on merging this PR into vLLM main repository).

Run the command below to start an OpenAI-compatible API service:

python -m vllm.entrypoints.openai.api_server --served-model-name Qwen2-VL-7B-Instruct --model Qwen/Qwen2-VL-7B-Instruct

Then you can use the chat API as below (via curl or Python API):

curl http://localhost:8000/v1/chat/completions \
    -H "Content-Type: application/json" \
    -d '{
    "model": "Qwen2-VL-7B-Instruct",
    "messages": [
    {"role": "system", "content": "You are a helpful assistant."},
    {"role": "user", "content": [
        {"type": "image_url", "image_url": {"url": "https://modelscope.oss-cn-beijing.aliyuncs.com/resource/qwen.png"}},
        {"type": "text", "text": "What is the text in the illustrate?"}
    ]}
    ]
    }'

from openai import OpenAI

# Set OpenAI's API key and API base to use vLLM's API server.
openai_api_key = "EMPTY"
openai_api_base = "http://localhost:8000/v1"

client = OpenAI(
    api_key=openai_api_key,
    base_url=openai_api_base,
)

chat_response = client.chat.completions.create(
    model="Qwen2-7B-Instruct",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {
            "role": "user",
            "content": [
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://modelscope.oss-cn-beijing.aliyuncs.com/resource/qwen.png"
                    },
                },
                {"type": "text", "text": "What is the text in the illustrate?"},
            ],
        },
    ],
)
print("Chat response:", chat_response)

NOTE: Now vllm.entrypoints.openai.api_server does not support set min_pixels and max_pixels in messages (we are working hard on supporting this feature). If you want to limit the resolution, you can set them in model's preprocessor_config.json:

{
  "min_pixels": 50176,
  "max_pixels": 1003520,
  ...
}

You can also use vLLM to inference Qwen2-VL locally:

from transformers import AutoProcessor
from vllm import LLM, SamplingParams
from qwen_vl_utils import process_vision_info

MODEL_PATH = "Qwen/Qwen2-VL-7B-Instruct"

llm = LLM(
    model=MODEL_PATH,
    limit_mm_per_prompt={"image": 10, "video": 10},
)

sampling_params = SamplingParams(
    temperature=0.1,
    top_p=0.001,
    repetition_penalty=1.05,
    max_tokens=256,
    stop_token_ids=[],
)

messages = [
    {"role": "system", "content": "You are a helpful assistant."},
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "https://modelscope.oss-cn-beijing.aliyuncs.com/resource/qwen.png",
                "min_pixels": 224 * 224,
                "max_pixels": 1280 * 28 * 28,
            },
            {"type": "text", "text": "What is the text in the illustrate?"},
        ],
    },
]

processor = AutoProcessor.from_pretrained(MODEL_PATH)
prompt = processor.apply_chat_template(
    messages,
    tokenize=False,
    add_generation_prompt=True,
)
image_inputs, video_inputs = process_vision_info(messages)

mm_data = {}
if image_inputs is not None:
    mm_data["image"] = image_inputs
if video_inputs is not None:
    mm_data["video"] = video_inputs

llm_inputs = {
    "prompt": prompt,
    "multi_modal_data": mm_data,
}

outputs = llm.generate([llm_inputs], sampling_params=sampling_params)
generated_text = outputs[0].outputs[0].text

print(generated_text)

Training

LLaMA-Factory

Here we provide a script for supervised finetuning Qwen2-VL with LLaMA-Factory <https://github.com/hiyouga/LLaMA-Factory>. This script for supervised finetuning (SFT) has the following features:

• Support multi-images input;

• Support single-GPU and multi-GPU training;

• Support full-parameter tuning, LoRA.

In the following, we introduce more details about the usage of the script.

Installation

Before you start, make sure you have installed the following packages:

1. Follow the instructions of LLaMA-Factory <https://github.com/hiyouga/LLaMA-Factory>, and build the environment.
2. Install these packages (Optional):

pip install deepspeed
pip install flash-attn --no-build-isolation

3. If you want to use FlashAttention-2 <https://github.com/Dao-AILab/flash-attention>, make sure your CUDA is 11.6 and above.

Data Preparation

LLaMA-Factory provides several training datasets in data folder, you can use it directly. If you are using a custom dataset, please prepare your dataset as follows.

1. Organize your data in a json file and put your data in data folder. LLaMA-Factory supports multimodal dataset in sharegpt format.

• The dataset in sharegpt format should follow the below format:

[
  {
    "messages": [
      {
        "content": "<image>Who are they?",
        "role": "user"
      },
      {
        "content": "They're Kane and Gretzka from Bayern Munich.",
        "role": "assistant"
      },
      {
        "content": "What are they doing?<image>",
        "role": "user"
      },
      {
        "content": "They are celebrating on the soccer field.",
        "role": "assistant"
      }
    ],
    "images": [
      "mllm_demo_data/1.jpg",
      "mllm_demo_data/1.jpg"
    ]
  },
]

1. Provide your dataset definition in data/dataset_info.json in the following format .

• For sharegpt format dataset, the columns in dataset_info.json should be:

   "dataset_name": {
       "file_name": "dataset_name.json",
       "formatting": "sharegpt",
       "columns": {
          "messages": "messages",
          "images": "images"
        },
      "tags": {
         "role_tag": "role",
         "content_tag": "content",
         "user_tag": "user",
         "assistant_tag": "assistant"
        }
   }

Training

Lora SFT examples:

llamafactory-cli train examples/train_lora/qwen2vl_lora_sft.yaml
llamafactory-cli export examples/merge_lora/qwen2vl_lora_sft.yaml

LoRA DPO/ORPO/SimPO examples: (using RLHF-V Dataset)

llamafactory-cli train examples/train_lora/qwen2vl_lora_dpo.yaml

Full SFT examples:

llamafactory-cli train examples/train_full/qwen2vl_full_sft.yaml

Inference examples:

llamafactory-cli webchat examples/inference/qwen2_vl.yaml
llamafactory-cli api examples/inference/qwen2_vl.yaml

Execute the following training command:

DISTRIBUTED_ARGS="
    --nproc_per_node $NPROC_PER_NODE \
    --nnodes $NNODES \
    --node_rank $NODE_RANK \
    --master_addr $MASTER_ADDR \
    --master_port $MASTER_PORT
    "

torchrun $DISTRIBUTED_ARGS src/train.py \
    --deepspeed $DS_CONFIG_PATH \
    --stage sft \
    --do_train \
    --model_name_or_path Qwen/Qwen2-VL-7B-Instruct \
    --dataset mllm_demo \
    --template qwen2_vl \
    --finetuning_type lora \
    --output_dir $OUTPUT_PATH \
    --overwrite_cache \
    --overwrite_output_dir \
    --warmup_steps 100 \
    --weight_decay 0.1 \
    --per_device_train_batch_size 2 \
    --gradient_accumulation_steps 4 \
    --ddp_timeout 9000 \
    --learning_rate 5e-6 \
    --lr_scheduler_type cosine \
    --logging_steps 1 \
    --cutoff_len 4096 \
    --save_steps 1000 \
    --plot_loss \
    --num_train_epochs 3 \
    --bf16 

and enjoy the training process. To make changes to your training, you can modify the arguments in the training command to adjust the hyperparameters. One argument to note is cutoff_len, which is the maximum length of the training data. Control this parameter to avoid OOM error.

Function Calling

Qwen2-VL supports Function Calling (aka. Tool Calling or Tool Use). For details on how to use this capability, please refer to the Qwen-Agent project for the function calling example and the agent example.

Simple Use Case

# pip install qwen_agent
from typing import List, Union
from datetime import datetime
from qwen_agent.agents import FnCallAgent
from qwen_agent.gui import WebUI
from qwen_agent.tools.base import BaseToolWithFileAccess, register_tool

@register_tool("get_date")
class GetDate(BaseToolWithFileAccess):
    description = "call this tool to get the current date"
    parameters = [
        {
            "name": "lang",
            "type": "string",
            "description": "one of ['en', 'zh'], default is en",
            "required": False
        },
    ]

    def call(self, params: Union[str, dict], files: List[str] = None, **kwargs) -> str:
        super().call(params=params, files=files)
        params = self._verify_json_format_args(params)
        lang = "zh" if "zh" in params["lang"] else "en"
        now = datetime.now()
        result = now.strftime("%Y-%m-%d %H:%M:%S") + "\n"
        weekday = now.weekday()
        if lang == "zh":
            days_chinese = ["一", "二", "三", "四", "五", "六", "日"]
            result += "今天是星期" + days_chinese[weekday]
        else:
            days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
            result += "Today is " + days[weekday]
        return result


def init_agent_service():
    llm_cfg_vl = {
        # Using Qwen2-VL deployed at any openai-compatible service such as vLLM:
        "model_type": "qwenvl_oai",
        "model": "Qwen/Qwen2-VL-7B-Instruct",
        "model_server": "http://localhost:8000/v1",  # api_base
        "api_key": 'EMPTY",
    }
    tools = [
        "get_date",
        "code_interpreter",
    ]  # code_interpreter is a built-in tool in Qwen-Agent
    bot = FnCallAgent(
        llm=llm_cfg_vl,
        name="Qwen2-VL",
        description="function calling",
        function_list=tools,
    )
    return bot

def app_gui():
    # Define the agent
    bot = init_agent_service()
    WebUI(bot).run()

# Launch gradio app
app_gui()

Demo

Web UI Example

In this section, we provide instructions for users to build a web-based user interface (UI) demo. This UI demo allows users to interact with a predefined model or application through a web browser. Follow the steps below to get started.

Installation

Before you begin, ensure that you have the required dependencies installed on your system. You can install them by running the following command:

pip install -r requirements_web_demo.txt

Running the Demo with FlashAttention-2

Once the required packages are installed, you can launch the web demo using the following command. This command will start a web server and provide you with a link to access the UI in your web browser.

Recommended: For enhanced performance and efficiency, especially in multi-image and video processing scenarios, we strongly recommend using FlashAttention-2. FlashAttention-2 provides significant improvements in memory usage and speed, making it ideal for handling large-scale models and data processing.

To enable FlashAttention-2, use the following command:

python web_demo_mm.py --flash-attn2

This will load the model with FlashAttention-2 enabled.

Default Usage: If you prefer to run the demo without FlashAttention-2 or if you do not specify the --flash-attn2 option, the demo will load the model using the standard attention implementation:

python web_demo_mm.py

After running the command, you’ll see a link generated in the terminal similar to this:

Running on local: http://127.0.0.1:7860/

Copy this link and paste it into your browser to access the web UI, where you can interact with the model by inputting text, uploading images, or using any other provided functionalities.

Selecting Different Models (Qwen2-VL Series Only)

The demo is configured by default to use the Qwen/Qwen2-VL-7B-Instruct model, which is part of the Qwen2-VL series and is well-suited for various vision-language tasks. However, if you want to use a different model within the Qwen2-VL series, you can simply update the DEFAULT_CKPT_PATH variable in the script:

1. Locate the DEFAULT_CKPT_PATH Variable: Inside web_demo_mm.py, find the DEFAULT_CKPT_PATH variable that defines the model checkpoint path. It should look like this:

   DEFAULT_CKPT_PATH = 'Qwen/Qwen2-VL-7B-Instruct'

2. Replace with a Different Qwen2-VL Model Path: Modify DEFAULT_CKPT_PATH to point to another checkpoint path within the Qwen2-VL series. For example:

   DEFAULT_CKPT_PATH = 'Qwen/Qwen2-VL-2B-Instruct'  # Example for a different model in the series

3. Save and Re-run: After modifying the path, save the script and then re-run the demo using the instructions provided in the Running the Demo section above.

Note: This DEFAULT_CKPT_PATH only supports models from the Qwen2-VL series. If you're using a model outside of the Qwen2-VL series, additional changes to the codebase may be necessary.

Customization

Further customization of the web demo, including UI layout, interactions, and additional functionalities like handling specialized input, can be done by modifying the web_demo_mm.py script. This flexibility allows you to tailor the web interface to better fit specific tasks or workflows.

Limitations

While Qwen2-VL are applicable to a wide range of visual tasks, it is equally important to understand its limitations. Here are some known restrictions:

1. Lack of Audio Support: The current model does not comprehend audio information within videos.
2. Data timeliness: Our image dataset is updated until June 2023, and information subsequent to this date may not be covered.
3. Constraints in Individuals and Intellectual Property (IP): The model's capacity to recognize specific individuals or IPs is limited, potentially failing to comprehensively cover all well-known personalities or brands.
4. Limited Capacity for Complex Instruction: When faced with intricate multi-step instructions, the model's understanding and execution capabilities require enhancement.
5. Insufficient Counting Accuracy: Particularly in complex scenes, the accuracy of object counting is not high, necessitating further improvements.
6. Weak Spatial Reasoning Skills: Especially in 3D spaces, the model's inference of object positional relationships is inadequate, making it difficult to precisely judge the relative positions of objects.

These limitations serve as ongoing directions for model optimization and improvement, and we are committed to continually enhancing the model's performance and scope of application.

🐳 Docker

To simplify the deploy process, we provide docker images with pre-build environments: qwenllm/qwenvl. You only need to install the driver and download model files to launch demos.

docker run --gpus all --ipc=host --network=host --rm --name qwen2 -it qwenllm/qwenvl:2-cu121 bash

Citation

If you find our paper and code useful in your research, please consider giving a star ⭐ and citation 📝 :)

@article{Qwen2-VL,
  title={Qwen2-VL},
  author={Qwen team},
  year={2024}
}

@article{Qwen-VL,
  title={Qwen-VL: A Versatile Vision-Language Model for Understanding, Localization, Text Reading, and Beyond},
  author={Bai, Jinze and Bai, Shuai and Yang, Shusheng and Wang, Shijie and Tan, Sinan and Wang, Peng and Lin, Junyang and Zhou, Chang and Zhou, Jingren},
  journal={arXiv preprint arXiv:2308.12966},
  year={2023}
}