聊天模型 是一种语言模型，它使用一系列 消息 作为输入，并返回消息作为输出 .
特色提供商
尽管所有这些LangChain类都支持所指示的高级功能，您可能需要打开特定提供者的文档来了解哪些托管模型或后端支持此功能。
{
/* TODO: finish linking to specific section for `ChatModel` */
}
| 提供者 | [调用工具](/oss/python/langchain/tools) | [结构化输出](/oss/python/langchain/structured-output/) | JSON 模式 | 本地 | [多模态](/oss/python/langchain/messages#multimodal) | 包 |
|----------|------------|-------------------|-----------|-------|------------|---------|
| [`ChatAnthropic`](/oss/python/integrations/chat/anthropic) | ✅ | ✅ | ❌ | ❌ | ✅ | [`langchain-anthropic`](https://reference.langchain.com/python/integrations/langchain_anthropic/) |
| [`ChatOpenAI`](/oss/python/integrations/chat/openai) | ✅ | ✅ | ✅ | ❌ | ✅ | [`langchain-openai`](https://reference.langchain.com/python/integrations/langchain_openai/ChatOpenAI/) |
| [`AzureChatOpenAI`](/oss/python/integrations/chat/azure_chat_openai) | ✅ | ✅ | ✅ | ❌ | ✅ | [`langchain-openai`](https://reference.langchain.com/python/integrations/langchain_openai/AzureChatOpenAI/) |
| [`ChatVertexAI`](/oss/python/integrations/chat/google_vertex_ai_palm) | ✅ | ✅ | ❌ | ❌ | ✅ | [`langchain-google-vertexai`](https://reference.langchain.com/python/integrations/langchain_google_vertexai/) |
| [`ChatGoogleGenerativeAI`](/oss/python/integrations/chat/google_generative_ai) | ✅ | ✅ | ❌ | ❌ | ✅ | [`langchain-google-genai`](https://reference.langchain.com/python/integrations/langchain_google_genai/) |
| [`ChatGroq`](/oss/python/integrations/chat/groq) | ✅ | ✅ | ✅ | ❌ | ❌ | [`langchain-groq`](https://reference.langchain.com/python/integrations/langchain_groq/) |
| [`ChatBedrock`](/oss/python/integrations/chat/bedrock) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-aws`](https://reference.langchain.com/python/integrations/langchain_aws/) |
| [`ChatHuggingFace`](/oss/python/integrations/chat/huggingface) | ✅ | ✅ | ❌ | ✅ | ❌ | [`langchain-huggingface`](https://reference.langchain.com/python/integrations/langchain_huggingface/) |
| [`ChatOllama`](/oss/python/integrations/chat/ollama) | ✅ | ✅ | ✅ | ✅ | ❌ | [`langchain-ollama`](https://reference.langchain.com/python/integrations/langchain_ollama/) |
| [`ChatXAI`](/oss/python/integrations/chat/xai) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-xai`](https://reference.langchain.com/python/integrations/langchain_xai/) |
| [`ChatNVIDIA`](/oss/python/integrations/chat/nvidia_ai_endpoints) | ✅ | ✅ | ✅ | ✅ | ✅ | [`langchain-nvidia-ai-endpoints`](https://reference.langchain.com/python/integrations/langchain_nvidia_ai_endpoints/) |
| [`ChatCohere`](/oss/python/integrations/chat/cohere) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-cohere`](https://reference.langchain.com/python/integrations/langchain_cohere/) |
| [`ChatMistralAI`](/oss/python/integrations/chat/mistralai) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-mistralai`](https://reference.langchain.com/python/integrations/langchain_mistralai/) |
| [`ChatTogether`](/oss/python/integrations/chat/together) | ✅ | ✅ | ✅ | ❌ | ❌ | [`langchain-together`](https://reference.langchain.com/python/integrations/langchain_together/) |
| [`ChatFireworks`](/oss/python/integrations/chat/fireworks) | ✅ | ✅ | ✅ | ❌ | ❌ | [`langchain-fireworks`](https://reference.langchain.com/python/integrations/langchain_fireworks/) |
| [`ChatAI21`](/oss/python/integrations/chat/ai21) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-ai21`](https://python.langchain.com/api_reference/ai21/chat_models/langchain_ai21.chat_models.ChatAI21.html) |
| [`ChatLlamaCpp`](/oss/python/integrations/chat/llamacpp) | ✅ | ✅ | ❌ | ✅ | ❌ | [`langchain-community`](https://python.langchain.com/api_reference/community/chat_models/langchain_community.chat_models.llamacpp.ChatLlamaCpp.html) |
| [`ChatUpstage`](/oss/python/integrations/chat/upstage) | ✅ | ✅ | ❌ | ❌ | ❌ | [`langchain-upstage`](https://reference.langchain.com/python/integrations/langchain_upstage/) |
| [`ChatDatabricks`](/oss/python/integrations/chat/databricks) | ✅ | ✅ | ❌ | ❌ | ❌ | [`databricks-langchain`](https://api-docs.databricks.com/python/databricks-ai-bridge/latest/databricks_langchain.html#databricks_langchain.ChatDatabricks) |
| [`ChatWatsonx`](/oss/python/integrations/chat/ibm_watsonx) | ✅ | ✅ | ✅ | ❌ | ❌ | [`langchain-ibm`](https://reference.langchain.com/python/integrations/langchain_ibm/) |
| [`ChatPerplexity`](/oss/python/integrations/chat/perplexity) | ❌ | ✅ | ✅ | ❌ | ✅ | [`langchain-perplexity`](https://reference.langchain.com/python/integrations/langchain_perplexity/) |
所有聊天模型
AzureAIChatCompletionsModel
