diff --git a/helm-charts/common/data-prep/templates/configmap.yaml b/helm-charts/common/data-prep/templates/configmap.yaml
index 636227627..84b26d634 100644
--- a/helm-charts/common/data-prep/templates/configmap.yaml
+++ b/helm-charts/common/data-prep/templates/configmap.yaml
@@ -34,7 +34,4 @@ data:
   {{- else }}
   no_proxy: {{ .Values.global.no_proxy | quote }}
   {{- end }}
-  LANGCHAIN_TRACING_V2: {{ .Values.global.LANGCHAIN_TRACING_V2 | quote }}
-  LANGCHAIN_API_KEY: {{ .Values.global.LANGCHAIN_API_KEY | quote }}
-  LANGCHAIN_PROJECT: "opea-dataprep-service"
   LOGFLAG: {{ .Values.LOGFLAG | quote }}
diff --git a/helm-charts/common/data-prep/values.yaml b/helm-charts/common/data-prep/values.yaml
index 6a1fc0823..a18b68f2e 100644
--- a/helm-charts/common/data-prep/values.yaml
+++ b/helm-charts/common/data-prep/values.yaml
@@ -100,5 +100,3 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
-  LANGCHAIN_TRACING_V2: false
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
diff --git a/helm-charts/common/embedding-usvc/templates/configmap.yaml b/helm-charts/common/embedding-usvc/templates/configmap.yaml
index 28da012e3..5ec5904ad 100644
--- a/helm-charts/common/embedding-usvc/templates/configmap.yaml
+++ b/helm-charts/common/embedding-usvc/templates/configmap.yaml
@@ -20,7 +20,4 @@ data:
   {{- else }}
   no_proxy: {{ .Values.global.no_proxy | quote }}
   {{- end }}
-  LANGCHAIN_TRACING_V2: {{ .Values.global.LANGCHAIN_TRACING_V2 | quote }}
-  LANGCHAIN_API_KEY: {{ .Values.global.LANGCHAIN_API_KEY }}
-  LANGCHAIN_PROJECT: "opea-embedding-service"
   LOGFLAG: {{ .Values.LOGFLAG | quote }}
diff --git a/helm-charts/common/embedding-usvc/values.yaml b/helm-charts/common/embedding-usvc/values.yaml
index b57f08e00..dfab98260 100644
--- a/helm-charts/common/embedding-usvc/values.yaml
+++ b/helm-charts/common/embedding-usvc/values.yaml
@@ -89,9 +89,3 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  # HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
-  LANGCHAIN_TRACING_V2: false
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  # set modelUseHostPath to host directory if you want to use hostPath volume for model storage
-  # comment out modeluseHostPath if you want to download the model from huggingface
-  modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/common/llm-uservice/README.md b/helm-charts/common/llm-uservice/README.md
index 191b1efd8..5ace49d1b 100644
--- a/helm-charts/common/llm-uservice/README.md
+++ b/helm-charts/common/llm-uservice/README.md
@@ -46,10 +46,9 @@ curl http://localhost:9000/v1/chat/completions \
 
 ## Values
 
-| Key                             | Type   | Default              | Description                                                                                                                                                  |
-| ------------------------------- | ------ | -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| global.HUGGINGFACEHUB_API_TOKEN | string | `""`                 | Your own Hugging Face API token                                                                                                                              |
-| global.modelUseHostPath         | string | `"/mnt/opea-models"` | Cached models directory, tgi will not download if the model is cached here. The host path "modelUseHostPath" will be mounted to container as /data directory |
-| image.repository                | string | `"opea/llm-tgi"`     |                                                                                                                                                              |
-| service.port                    | string | `"9000"`             |                                                                                                                                                              |
-| TGI_LLM_ENDPOINT                | string | `""`                 | LLM endpoint                                                                                                                                                 |
+| Key                             | Type   | Default          | Description                     |
+| ------------------------------- | ------ | ---------------- | ------------------------------- |
+| global.HUGGINGFACEHUB_API_TOKEN | string | `""`             | Your own Hugging Face API token |
+| image.repository                | string | `"opea/llm-tgi"` |                                 |
+| service.port                    | string | `"9000"`         |                                 |
+| TGI_LLM_ENDPOINT                | string | `""`             | LLM endpoint                    |
diff --git a/helm-charts/common/llm-uservice/templates/configmap.yaml b/helm-charts/common/llm-uservice/templates/configmap.yaml
index 8e734b652..bb1c39434 100644
--- a/helm-charts/common/llm-uservice/templates/configmap.yaml
+++ b/helm-charts/common/llm-uservice/templates/configmap.yaml
@@ -25,7 +25,4 @@ data:
   {{- else }}
   no_proxy: {{ .Values.global.no_proxy | quote }}
   {{- end }}
-  LANGCHAIN_TRACING_V2: {{ .Values.global.LANGCHAIN_TRACING_V2 | quote }}
-  LANGCHAIN_API_KEY: {{ .Values.global.LANGCHAIN_API_KEY }}
-  LANGCHAIN_PROJECT: "opea-llm-uservice"
   LOGFLAG: {{ .Values.LOGFLAG | quote }}
diff --git a/helm-charts/common/llm-uservice/values.yaml b/helm-charts/common/llm-uservice/values.yaml
index 0b7b2642b..39b10894d 100644
--- a/helm-charts/common/llm-uservice/values.yaml
+++ b/helm-charts/common/llm-uservice/values.yaml
@@ -90,8 +90,3 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
-  LANGCHAIN_TRACING_V2: false
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  # set modelUseHostPath to host directory if you want to use hostPath volume for model storage
-  # comment out modeluseHostPath if you want to download the model from huggingface
-  modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/common/reranking-usvc/templates/configmap.yaml b/helm-charts/common/reranking-usvc/templates/configmap.yaml
index d63c53ee2..69b1fcd91 100644
--- a/helm-charts/common/reranking-usvc/templates/configmap.yaml
+++ b/helm-charts/common/reranking-usvc/templates/configmap.yaml
@@ -20,7 +20,4 @@ data:
   {{- else }}
   no_proxy: {{ .Values.global.no_proxy | quote }}
   {{- end }}
-  LANGCHAIN_TRACING_V2: {{ .Values.global.LANGCHAIN_TRACING_V2 | quote }}
-  LANGCHAIN_API_KEY: {{ .Values.global.LANGCHAIN_API_KEY | quote }}
-  LANGCHAIN_PROJECT: "opea-reranking-service"
   LOGFLAG: {{ .Values.LOGFLAG | quote }}
diff --git a/helm-charts/common/reranking-usvc/values.yaml b/helm-charts/common/reranking-usvc/values.yaml
index 3bac2cccf..56454d11b 100644
--- a/helm-charts/common/reranking-usvc/values.yaml
+++ b/helm-charts/common/reranking-usvc/values.yaml
@@ -89,9 +89,3 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  # HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
-  LANGCHAIN_TRACING_V2: false
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  # set modelUseHostPath to host directory if you want to use hostPath volume for model storage
-  # comment out modeluseHostPath if you want to download the model from huggingface
-  modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/common/retriever-usvc/templates/configmap.yaml b/helm-charts/common/retriever-usvc/templates/configmap.yaml
index b2be3834f..39a4271a8 100644
--- a/helm-charts/common/retriever-usvc/templates/configmap.yaml
+++ b/helm-charts/common/retriever-usvc/templates/configmap.yaml
@@ -28,9 +28,6 @@ data:
   {{- else }}
   no_proxy: {{ .Values.global.no_proxy | quote }}
   {{- end }}
-  LANGCHAIN_TRACING_V2: {{ .Values.global.LANGCHAIN_TRACING_V2 | quote }}
-  LANGCHAIN_API_KEY: {{ .Values.global.LANGCHAIN_API_KEY | quote }}
-  LANGCHAIN_PROJECT: "opea-retriever-service"
   HF_HOME: "/tmp/.cache/huggingface"
   HUGGINGFACEHUB_API_TOKEN: {{ .Values.global.HUGGINGFACEHUB_API_TOKEN | quote}}
   LOGFLAG: {{ .Values.LOGFLAG | quote }}
diff --git a/helm-charts/common/retriever-usvc/values.yaml b/helm-charts/common/retriever-usvc/values.yaml
index fe8f36e08..19157edd2 100644
--- a/helm-charts/common/retriever-usvc/values.yaml
+++ b/helm-charts/common/retriever-usvc/values.yaml
@@ -94,6 +94,4 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: false
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
diff --git a/helm-charts/update_genaiexamples.sh b/helm-charts/update_genaiexamples.sh
index 331819416..5c1c546c4 100755
--- a/helm-charts/update_genaiexamples.sh
+++ b/helm-charts/update_genaiexamples.sh
@@ -33,8 +33,7 @@ function generate_yaml {
   extra=$5
 
   local extraparams=""
-  extraparams="--set global.modelUseHostPath=${MODELPATH}"
-  [[ "x$extra" != "x" ]] && extraparams="${extraparams},${extra}"
+  [[ "x$extra" != "x" ]] && extraparams="--set ${extra}"
 
   helm dependency update $chart
   helm template $chart $chart --skip-tests $extraparams -f $chart/${valuefile} > $outputdir/$outputfile
diff --git a/microservices-connector/config/manifests/data-prep.yaml b/microservices-connector/config/manifests/data-prep.yaml
index a958941cc..c681e93a9 100644
--- a/microservices-connector/config/manifests/data-prep.yaml
+++ b/microservices-connector/config/manifests/data-prep.yaml
@@ -25,9 +25,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  LANGCHAIN_PROJECT: "opea-dataprep-service"
   LOGFLAG: ""
 ---
 # Source: data-prep/templates/service.yaml
diff --git a/microservices-connector/config/manifests/docsum-llm-uservice.yaml b/microservices-connector/config/manifests/docsum-llm-uservice.yaml
index 2f0adc1f8..b0a5a92d3 100644
--- a/microservices-connector/config/manifests/docsum-llm-uservice.yaml
+++ b/microservices-connector/config/manifests/docsum-llm-uservice.yaml
@@ -20,9 +20,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: insert-your-langchain-key-here
-  LANGCHAIN_PROJECT: "opea-llm-uservice"
   LOGFLAG: ""
 ---
 # Source: llm-uservice/templates/service.yaml
diff --git a/microservices-connector/config/manifests/embedding-usvc.yaml b/microservices-connector/config/manifests/embedding-usvc.yaml
index 45e9b2e85..c5eefa0c6 100644
--- a/microservices-connector/config/manifests/embedding-usvc.yaml
+++ b/microservices-connector/config/manifests/embedding-usvc.yaml
@@ -18,9 +18,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: insert-your-langchain-key-here
-  LANGCHAIN_PROJECT: "opea-embedding-service"
   LOGFLAG: ""
 ---
 # Source: embedding-usvc/templates/service.yaml
diff --git a/microservices-connector/config/manifests/llm-uservice.yaml b/microservices-connector/config/manifests/llm-uservice.yaml
index a65b03dd1..43f0c64a7 100644
--- a/microservices-connector/config/manifests/llm-uservice.yaml
+++ b/microservices-connector/config/manifests/llm-uservice.yaml
@@ -20,9 +20,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: insert-your-langchain-key-here
-  LANGCHAIN_PROJECT: "opea-llm-uservice"
   LOGFLAG: ""
 ---
 # Source: llm-uservice/templates/service.yaml
diff --git a/microservices-connector/config/manifests/reranking-usvc.yaml b/microservices-connector/config/manifests/reranking-usvc.yaml
index 954a8c19e..ba1b97bed 100644
--- a/microservices-connector/config/manifests/reranking-usvc.yaml
+++ b/microservices-connector/config/manifests/reranking-usvc.yaml
@@ -18,9 +18,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  LANGCHAIN_PROJECT: "opea-reranking-service"
   LOGFLAG: ""
 ---
 # Source: reranking-usvc/templates/service.yaml
diff --git a/microservices-connector/config/manifests/retriever-usvc.yaml b/microservices-connector/config/manifests/retriever-usvc.yaml
index 79824a967..2c5456857 100644
--- a/microservices-connector/config/manifests/retriever-usvc.yaml
+++ b/microservices-connector/config/manifests/retriever-usvc.yaml
@@ -22,9 +22,6 @@ data:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
-  LANGCHAIN_TRACING_V2: "false"
-  LANGCHAIN_API_KEY: "insert-your-langchain-key-here"
-  LANGCHAIN_PROJECT: "opea-retriever-service"
   HF_HOME: "/tmp/.cache/huggingface"
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
   LOGFLAG: ""