diff --git a/auto-configurations/models/chat/client/spring-ai-autoconfigure-model-chat-client/src/main/java/org/springframework/ai/model/chat/client/autoconfigure/ChatClientAutoConfiguration.java b/auto-configurations/models/chat/client/spring-ai-autoconfigure-model-chat-client/src/main/java/org/springframework/ai/model/chat/client/autoconfigure/ChatClientAutoConfiguration.java
index 9341ea1ae7b..7ca4c3bd54f 100644
--- a/auto-configurations/models/chat/client/spring-ai-autoconfigure-model-chat-client/src/main/java/org/springframework/ai/model/chat/client/autoconfigure/ChatClientAutoConfiguration.java
+++ b/auto-configurations/models/chat/client/spring-ai-autoconfigure-model-chat-client/src/main/java/org/springframework/ai/model/chat/client/autoconfigure/ChatClientAutoConfiguration.java
@@ -49,10 +49,23 @@
  * @author Arjen Poutsma
  * @author Thomas Vitale
  * @author Jonatan Ivanov
+ * @author Yanming Zhou
  * @since 1.0.0
  */
 @AutoConfiguration(
-		afterName = { "org.springframework.boot.actuate.autoconfigure.observation.ObservationAutoConfiguration" })
+		afterName = { "org.springframework.boot.actuate.autoconfigure.observation.ObservationAutoConfiguration",
+				"org.springframework.ai.model.anthropic.autoconfigure.AnthropicChatAutoConfiguration",
+				"org.springframework.ai.model.azure.openai.autoconfigure.AzureOpenAiChatAutoConfiguration",
+				"org.springframework.ai.model.bedrock.converse.autoconfigure.BedrockConverseProxyChatAutoConfiguration",
+				"org.springframework.ai.model.deepseek.autoconfigure.DeepSeekChatAutoConfiguration",
+				"org.springframework.ai.model.huggingface.autoconfigure.HuggingfaceChatAutoConfiguration",
+				"org.springframework.ai.model.minimax.autoconfigure.MiniMaxChatAutoConfiguration",
+				"org.springframework.ai.model.mistralai.autoconfigure.MistralAiChatAutoConfiguration",
+				"org.springframework.ai.model.oci.genai.autoconfigure.OCIGenAiChatAutoConfiguration",
+				"org.springframework.ai.model.ollama.autoconfigure.OllamaChatAutoConfiguration",
+				"org.springframework.ai.model.openai.autoconfigure.OpenAiChatAutoConfiguration",
+				"org.springframework.ai.model.vertexai.autoconfigure.gemini.VertexAiGeminiChatAutoConfiguration",
+				"org.springframework.ai.model.zhipuai.autoconfigure.ZhiPuAiChatAutoConfiguration" })
 @ConditionalOnClass(ChatClient.class)
 @EnableConfigurationProperties(ChatClientBuilderProperties.class)
 @ConditionalOnProperty(prefix = ChatClientBuilderProperties.CONFIG_PREFIX, name = "enabled", havingValue = "true",
@@ -77,6 +90,7 @@ ChatClientBuilderConfigurer chatClientBuilderConfigurer(ObjectProvider<ChatClien
 	@Bean
 	@Scope("prototype")
 	@ConditionalOnMissingBean
+	@ConditionalOnSingleCandidate(ChatModel.class)
 	ChatClient.Builder chatClientBuilder(ChatClientBuilderConfigurer chatClientBuilderConfigurer, ChatModel chatModel,
 			ObjectProvider<ObservationRegistry> observationRegistry,
 			ObjectProvider<ChatClientObservationConvention> observationConvention) {
diff --git a/auto-configurations/models/spring-ai-autoconfigure-model-openai/src/test/java/org/springframework/ai/model/openai/autoconfigure/ChatClientAutoConfigurationIT.java b/auto-configurations/models/spring-ai-autoconfigure-model-openai/src/test/java/org/springframework/ai/model/openai/autoconfigure/ChatClientAutoConfigurationIT.java
index 40eeaab3397..a9890b68bc7 100644
--- a/auto-configurations/models/spring-ai-autoconfigure-model-openai/src/test/java/org/springframework/ai/model/openai/autoconfigure/ChatClientAutoConfigurationIT.java
+++ b/auto-configurations/models/spring-ai-autoconfigure-model-openai/src/test/java/org/springframework/ai/model/openai/autoconfigure/ChatClientAutoConfigurationIT.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.
@@ -23,10 +23,13 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.EnabledIfEnvironmentVariable;
 
+import org.mockito.Mockito;
 import org.springframework.ai.chat.client.ChatClient;
 import org.springframework.ai.chat.client.ChatClientCustomizer;
+import org.springframework.ai.chat.model.ChatModel;
 import org.springframework.ai.model.chat.client.autoconfigure.ChatClientAutoConfiguration;
 import org.springframework.ai.retry.autoconfigure.SpringAiRetryAutoConfiguration;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
@@ -37,6 +40,7 @@
 
 /**
  * @author Christian Tzolov
+ * @author Yanming Zhou
  */
 @EnabledIfEnvironmentVariable(named = "OPENAI_API_KEY", matches = ".*")
 public class ChatClientAutoConfigurationIT {
@@ -44,7 +48,7 @@ public class ChatClientAutoConfigurationIT {
 	private static final Log logger = LogFactory.getLog(ChatClientAutoConfigurationIT.class);
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
-		.withPropertyValues("spring.ai.openai.apiKey=" + System.getenv("OPENAI_API_KEY"),
+		.withPropertyValues("spring.ai.openai.api-key=" + System.getenv("OPENAI_API_KEY"),
 				"spring.ai.openai.chat.options.model=gpt-4o")
 		.withConfiguration(
 				AutoConfigurations.of(SpringAiRetryAutoConfiguration.class, RestClientAutoConfiguration.class,
@@ -67,6 +71,12 @@ void explicitlyDisabled() {
 			.run(context -> assertThat(context.getBeansOfType(ChatClient.Builder.class)).isEmpty());
 	}
 
+	@Test
+	void multipleModelsEnabled() {
+		this.contextRunner.withConfiguration(AutoConfigurations.of(AnotherAiChatAutoConfiguration.class))
+			.run(context -> assertThat(context.getBeansOfType(ChatClient.Builder.class)).isEmpty());
+	}
+
 	@Test
 	void generate() {
 		this.contextRunner.run(context -> {
@@ -119,4 +129,14 @@ public ChatClientCustomizer chatClientCustomizer() {
 
 	}
 
+	@AutoConfiguration(before = ChatClientAutoConfiguration.class)
+	static class AnotherAiChatAutoConfiguration {
+
+		@Bean
+		ChatModel anotherAiChatModel() {
+			return Mockito.mock(ChatModel.class);
+		}
+
+	}
+
 }