diff --git a/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java b/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
index add0de1993233..b8860690fffc4 100644
--- a/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
+++ b/test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java
@@ -999,6 +999,13 @@ public static int randomNonNegativeInt() {
         return randomInt() & Integer.MAX_VALUE;
     }
 
+    /**
+     * @return an <code>int</code> between <code>Integer.MIN_VALUE</code> and <code>-1</code> (inclusive) chosen uniformly at random.
+     */
+    public static int randomNegativeInt() {
+        return randomInt() | Integer.MIN_VALUE;
+    }
+
     public static float randomFloat() {
         return random().nextFloat();
     }
diff --git a/test/framework/src/test/java/org/elasticsearch/test/test/ESTestCaseTests.java b/test/framework/src/test/java/org/elasticsearch/test/test/ESTestCaseTests.java
index 125c0563577fc..714c9bcde0469 100644
--- a/test/framework/src/test/java/org/elasticsearch/test/test/ESTestCaseTests.java
+++ b/test/framework/src/test/java/org/elasticsearch/test/test/ESTestCaseTests.java
@@ -45,6 +45,7 @@
 import static org.hamcrest.Matchers.greaterThanOrEqualTo;
 import static org.hamcrest.Matchers.hasSize;
 import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.lessThan;
 import static org.hamcrest.Matchers.lessThanOrEqualTo;
 import static org.hamcrest.Matchers.not;
 import static org.hamcrest.Matchers.notNullValue;
@@ -185,6 +186,10 @@ public void testRandomNonNegativeInt() {
         assertThat(randomNonNegativeInt(), greaterThanOrEqualTo(0));
     }
 
+    public void testRandomNegativeInt() {
+        assertThat(randomNegativeInt(), lessThan(0));
+    }
+
     public void testRandomValueOtherThan() {
         // "normal" way of calling where the value is not null
         int bad = randomInt();
diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettings.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettings.java
index 1a39cd67a70f3..d4a1fd938625e 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettings.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettings.java
@@ -33,8 +33,8 @@
 import static org.elasticsearch.xpack.inference.services.ServiceFields.MAX_INPUT_TOKENS;
 import static org.elasticsearch.xpack.inference.services.ServiceFields.SIMILARITY;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.extractOptionalBoolean;
+import static org.elasticsearch.xpack.inference.services.ServiceUtils.extractOptionalPositiveInteger;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.extractSimilarity;
-import static org.elasticsearch.xpack.inference.services.ServiceUtils.removeAsType;
 
 public class AzureAiStudioEmbeddingsServiceSettings extends AzureAiStudioServiceSettings {
 
@@ -59,10 +59,15 @@ private static AzureAiStudioEmbeddingCommonFields embeddingSettingsFromMap(
         ConfigurationParseContext context
     ) {
         var baseSettings = AzureAiStudioServiceSettings.fromMap(map, validationException, context);
-        SimilarityMeasure similarity = extractSimilarity(map, ModelConfigurations.SERVICE_SETTINGS, validationException);
-        Integer dims = removeAsType(map, DIMENSIONS, Integer.class);
-        Integer maxTokens = removeAsType(map, MAX_INPUT_TOKENS, Integer.class);
 
+        SimilarityMeasure similarity = extractSimilarity(map, ModelConfigurations.SERVICE_SETTINGS, validationException);
+        Integer dims = extractOptionalPositiveInteger(map, DIMENSIONS, ModelConfigurations.SERVICE_SETTINGS, validationException);
+        Integer maxTokens = extractOptionalPositiveInteger(
+            map,
+            MAX_INPUT_TOKENS,
+            ModelConfigurations.SERVICE_SETTINGS,
+            validationException
+        );
         Boolean dimensionsSetByUser = extractOptionalBoolean(map, DIMENSIONS_SET_BY_USER, validationException);
 
         switch (context) {
diff --git a/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettingsTests.java b/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettingsTests.java
index 05388192b2f14..c857a22e52996 100644
--- a/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettingsTests.java
+++ b/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/azureaistudio/embeddings/AzureAiStudioEmbeddingsServiceSettingsTests.java
@@ -170,6 +170,92 @@ public void testFromMap_Persistent_CreatesSettingsCorrectly() {
         );
     }
 
+    public void testFromMap_ThrowsException_WhenDimensionsAreZero() {
+        var target = "http://sometarget.local";
+        var provider = "openai";
+        var endpointType = "token";
+        var dimensions = 0;
+
+        var settingsMap = createRequestSettingsMap(target, provider, endpointType, dimensions, true, null, SimilarityMeasure.COSINE);
+
+        var thrownException = expectThrows(
+            ValidationException.class,
+            () -> AzureAiStudioEmbeddingsServiceSettings.fromMap(settingsMap, ConfigurationParseContext.REQUEST)
+        );
+
+        assertThat(
+            thrownException.getMessage(),
+            containsString("Validation Failed: 1: [service_settings] Invalid value [0]. [dimensions] must be a positive integer;")
+        );
+    }
+
+    public void testFromMap_ThrowsException_WhenDimensionsAreNegative() {
+        var target = "http://sometarget.local";
+        var provider = "openai";
+        var endpointType = "token";
+        var dimensions = randomNegativeInt();
+
+        var settingsMap = createRequestSettingsMap(target, provider, endpointType, dimensions, true, null, SimilarityMeasure.COSINE);
+
+        var thrownException = expectThrows(
+            ValidationException.class,
+            () -> AzureAiStudioEmbeddingsServiceSettings.fromMap(settingsMap, ConfigurationParseContext.REQUEST)
+        );
+
+        assertThat(
+            thrownException.getMessage(),
+            containsString(
+                Strings.format(
+                    "Validation Failed: 1: [service_settings] Invalid value [%d]. [dimensions] must be a positive integer;",
+                    dimensions
+                )
+            )
+        );
+    }
+
+    public void testFromMap_ThrowsException_WhenMaxInputTokensAreZero() {
+        var target = "http://sometarget.local";
+        var provider = "openai";
+        var endpointType = "token";
+        var maxInputTokens = 0;
+
+        var settingsMap = createRequestSettingsMap(target, provider, endpointType, null, true, maxInputTokens, SimilarityMeasure.COSINE);
+
+        var thrownException = expectThrows(
+            ValidationException.class,
+            () -> AzureAiStudioEmbeddingsServiceSettings.fromMap(settingsMap, ConfigurationParseContext.REQUEST)
+        );
+
+        assertThat(
+            thrownException.getMessage(),
+            containsString("Validation Failed: 1: [service_settings] Invalid value [0]. [max_input_tokens] must be a positive integer;")
+        );
+    }
+
+    public void testFromMap_ThrowsException_WhenMaxInputTokensAreNegative() {
+        var target = "http://sometarget.local";
+        var provider = "openai";
+        var endpointType = "token";
+        var maxInputTokens = randomNegativeInt();
+
+        var settingsMap = createRequestSettingsMap(target, provider, endpointType, null, true, maxInputTokens, SimilarityMeasure.COSINE);
+
+        var thrownException = expectThrows(
+            ValidationException.class,
+            () -> AzureAiStudioEmbeddingsServiceSettings.fromMap(settingsMap, ConfigurationParseContext.REQUEST)
+        );
+
+        assertThat(
+            thrownException.getMessage(),
+            containsString(
+                Strings.format(
+                    "Validation Failed: 1: [service_settings] Invalid value [%d]. [max_input_tokens] must be a positive integer;",
+                    maxInputTokens
+                )
+            )
+        );
+    }
+
     public void testFromMap_PersistentContext_DoesNotThrowException_WhenDimensionsIsNull() {
         var target = "http://sometarget.local";
         var provider = "openai";