diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/main/java/org/springframework/ai/model/bedrock/autoconfigure/BedrockAwsConnectionProperties.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/main/java/org/springframework/ai/model/bedrock/autoconfigure/BedrockAwsConnectionProperties.java
index cc47b675b63..3ee2bf8af55 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/main/java/org/springframework/ai/model/bedrock/autoconfigure/BedrockAwsConnectionProperties.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/main/java/org/springframework/ai/model/bedrock/autoconfigure/BedrockAwsConnectionProperties.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@
  * Configuration properties for Bedrock AWS connection.
  *
  * @author Christian Tzolov
+ * @author Andrey Litvitski
  * @since 0.8.0
  */
 @ConfigurationProperties(BedrockAwsConnectionProperties.CONFIG_PREFIX)
@@ -32,9 +33,10 @@ public class BedrockAwsConnectionProperties {
 	public static final String CONFIG_PREFIX = "spring.ai.bedrock.aws";
 
 	/**
-	 * AWS region to use. Defaults to us-east-1.
+	 * AWS region to use. Otherwise the DefaultAwsRegionProviderChain will be used to
+	 * resolve the region.
 	 */
-	private String region = "us-east-1";
+	private String region;
 
 	/**
 	 * AWS access key.
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/cohere/autoconfigure/BedrockCohereModelConfigurationTests.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/cohere/autoconfigure/BedrockCohereModelConfigurationTests.java
index 3bbd14dbbee..44291a7a74f 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/cohere/autoconfigure/BedrockCohereModelConfigurationTests.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/cohere/autoconfigure/BedrockCohereModelConfigurationTests.java
@@ -35,6 +35,7 @@ public class BedrockCohereModelConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 		.withConfiguration(AutoConfigurations.of(BedrockCohereEmbeddingAutoConfiguration.class))
+		.withPropertyValues("spring.ai.bedrock.aws.region=us-east-1")
 		.withBean(ObjectMapper.class, ObjectMapper::new);
 
 	@Test
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseModelConfigurationTests.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseModelConfigurationTests.java
index f453aab1036..eb287c35ede 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseModelConfigurationTests.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseModelConfigurationTests.java
@@ -33,6 +33,7 @@
 public class BedrockConverseModelConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+		.withPropertyValues("spring.ai.bedrock.aws.region=us-east-1")
 		.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class));
 
 	@Test
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatAutoConfigurationIT.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatAutoConfigurationIT.java
index 128e3203bb8..39340483d9f 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatAutoConfigurationIT.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatAutoConfigurationIT.java
@@ -45,7 +45,7 @@ public class BedrockConverseProxyChatAutoConfigurationIT {
 	private final ApplicationContextRunner contextRunner = BedrockTestUtils.getContextRunner()
 		.withPropertyValues(
 				"spring.ai.bedrock.converse.chat.options.model=" + "anthropic.claude-3-5-sonnet-20240620-v1:0",
-				"spring.ai.bedrock.converse.chat.options.temperature=0.5")
+				"spring.ai.bedrock.converse.chat.options.temperature=0.5", "spring.ai.bedrock.aws.region=us-east-1")
 		.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class));
 
 	@Test
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatPropertiesTests.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatPropertiesTests.java
index ef46d235364..4262a78e306 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatPropertiesTests.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/converse/autoconfigure/BedrockConverseProxyChatPropertiesTests.java
@@ -44,7 +44,8 @@ public void chatOptionsTest() {
 
 				"spring.ai.bedrock.converse.chat.options.temperature=0.55",
 				"spring.ai.bedrock.converse.chat.options.top-p=0.56",
-				"spring.ai.bedrock.converse.chat.options.top-k=100"
+				"spring.ai.bedrock.converse.chat.options.top-k=100",
+				"spring.ai.bedrock.aws.region=us-east-1"
 				)
 			// @formatter:on
 			.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class))
@@ -67,10 +68,12 @@ public void chatCompletionDisabled() {
 		// It is enabled by default
 		new ApplicationContextRunner()
 			.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class))
+			.withPropertyValues("spring.ai.bedrock.aws.region=us-east-1")
 			.run(context -> assertThat(context.getBeansOfType(BedrockConverseProxyChatProperties.class)).isNotEmpty());
 
 		// Explicitly enable the chat auto-configuration.
-		new ApplicationContextRunner().withPropertyValues("spring.ai.model.chat=bedrock-converse")
+		new ApplicationContextRunner()
+			.withPropertyValues("spring.ai.model.chat=bedrock-converse", "spring.ai.bedrock.aws.region=us-east-1")
 			.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class))
 			.run(context -> {
 				assertThat(context.getBeansOfType(BedrockConverseProxyChatProperties.class)).isNotEmpty();
@@ -78,7 +81,8 @@ public void chatCompletionDisabled() {
 			});
 
 		// Explicitly disable the chat auto-configuration.
-		new ApplicationContextRunner().withPropertyValues("spring.ai.model.chat=none")
+		new ApplicationContextRunner()
+			.withPropertyValues("spring.ai.model.chat=none", "spring.ai.bedrock.aws.region=us-east-1")
 			.withConfiguration(AutoConfigurations.of(BedrockConverseProxyChatAutoConfiguration.class))
 			.run(context -> {
 				assertThat(context.getBeansOfType(BedrockConverseProxyChatProperties.class)).isEmpty();
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/titan/autoconfigure/BedrockTitanModelConfigurationTests.java b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/titan/autoconfigure/BedrockTitanModelConfigurationTests.java
index b66b4c4f919..94498574886 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/titan/autoconfigure/BedrockTitanModelConfigurationTests.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-bedrock-ai/src/test/java/org/springframework/ai/model/bedrock/titan/autoconfigure/BedrockTitanModelConfigurationTests.java
@@ -35,6 +35,7 @@ public class BedrockTitanModelConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 		.withConfiguration(AutoConfigurations.of(BedrockTitanEmbeddingAutoConfiguration.class))
+		.withPropertyValues("spring.ai.bedrock.aws.region=us-east-1")
 		.withBean(ObjectMapper.class, ObjectMapper::new);
 
 	@Test