Chat model integrations

Chat models are language models that use a sequence of messages as inputs and return messages as outputs .

Featured models

While these LangChain classes support the indicated advanced feature, you may need to refer to provider-specific documentation to learn which hosted models or backends support the feature.

Model	Stream	Tool calling	Structured output	Multimodal
`AzureChatOpenAI`	✅	✅	✅	✅
`ChatOpenAI`	✅	✅	✅	✅
`ChatVertexAI` (deprecated)	✅	✅	✅	✅
`ChatAnthropic`	✅	✅	✅	✅
`ChatGoogleGenerativeAI`	✅	✅	✅	✅
`ChatLiteLLM`	✅	✅	✅	✅
`ChatDatabricks`	✅	✅	✅	❌
`ChatOllama`	✅	✅	✅	✅
`ChatGroq`	✅	✅	✅	✅
`ChatHuggingFace`	❌	✅	✅	✅
`ChatMistralAI`	✅	✅	✅	❌
`ChatXAI`	✅	✅	✅	❌
`ChatCohere`
`ChatDeepSeek`	✅	✅	✅	❌
`ChatNVIDIA`	✅	✅	✅	✅
`ChatOpenRouter`	✅	✅	✅	✅
`ChatTogether`	✅	✅	✅	✅
`ChatAmazonNova`	✅	✅	✅

See the full list of chat model integrations below for more options.

Routers & proxies

Routers and proxies give you access to models from multiple providers through a single API and credential. They can simplify billing, let you switch between models without changing integrations, and offer features like automatic fallbacks.

Provider	Integration	Description
Agentic SpendGuard	`SpendGuardChatModel`	Runtime budget gate that refuses LLM calls which would exceed spend limits before they reach the provider
Alephant AI	`ChatAlephantAI`	AI gateway for cost control, bring-your-own-key routing, and access to models across multiple providers
OpenRouter	`ChatOpenRouter`	Unified access to models from OpenAI, Anthropic, Google, Meta, and more
LiteLLM	`ChatLiteLLMRouter`	Unified interface for OpenAI, Anthropic, Azure, Hugging Face, and more with routing and fallbacks

Chat Completions API

Certain model providers offer endpoints that are compatible with OpenAI’s Chat Completions API. In such cases, you can use ChatOpenAI with a custom base_url to connect to these endpoints for basic chat functionality.

ChatOpenAI targets official OpenAI API specifications only. Non-standard response fields from third-party providers (e.g., reasoning_content, reasoning, reasoning_details) are not extracted or preserved. Use a provider-specific package when you need access to non-standard features.For instance, OpenRouter has a dedicated LangChain integration. See the ChatOpenRouter guide for setup and usage.

Snowflake Cortex REST API is fully compatible with both the OpenAI and Anthropic APIs. Use ChatOpenAI or ChatAnthropic with a custom base_url to access frontier models running within Snowflake’s security perimeter. Auxen hosts dedicated per-customer LLM endpoints with an OpenAI-compatible Chat Completions API. Use ChatOpenAI with a custom base_url and per-instance API key. DaoXE is a multi-model API gateway with an OpenAI-compatible Chat Completions surface. Use ChatOpenAI with base_url https://daoxe.com/v1 and an account-scoped model ID. 1Claw routes LLM calls through the Shroud TEE proxy with ChatOpenAI or ChatAnthropic and a custom base_url, keeping provider keys and secrets out of agent context. Apertis provides an OpenAI-compatible Chat Completions API. Use ChatOpenAI with base_url https://api.apertis.ai/v1 and a model ID available to your account.

All chat models

Model	Stream	Tool calling	Structured output	Multimodal	Downloads
`AzureChatOpenAI`	✅	✅	✅	✅
`ChatOpenAI`	✅	✅	✅	✅
`vLLM`
`ChatAnthropicVertex`
`ChatVertexAI` (deprecated)	✅	✅	✅	✅
`ChatAnthropic`	✅	✅	✅	✅
`ChatAnthropicTools`
`ChatGoogleGenerativeAI`	✅	✅	✅	✅
`ChatBedrock`	✅	✅	✅	✅
`ChatLiteLLM`	✅	✅	✅	✅
`ChatDatabricks`	✅	✅	✅	❌
`ChatOllama`	✅	✅	✅	✅
`ChatGroq`	✅	✅	✅	✅
`ChatHuggingFace`	❌	✅	✅	✅
`ChatFireworks`	✅	✅	✅	❌
`ChatMistralAI`	✅	✅	✅	❌
`ChatXAI`	✅	✅	✅	❌
`ChatCohere`
`ChatDeepSeek`	✅	✅	✅	❌
`AzureAIChatCompletionsModel`	✅	✅	✅	✅
`ChatNVIDIA`	✅	✅	✅	✅
`ChatWatsonx`	✅	✅	✅	✅
`ChatOpenRouter`	✅	✅	✅	✅
`ChatPerplexity`	✅	❌	✅	❌
`ChatSambaNova`	✅	✅	✅	✅
`ChatCerebras`	✅	✅	✅	❌
`ChatOCIGenerativeAI`	✅	✅	✅	✅
`ChatOCIModelDeployment`	✅
`ChatBaseten`
`ChatTogether`	✅	✅	✅	✅
`ChatQwen`	✅	✅	✅	✅
`ChatQwQ`	✅	✅	✅	✅
`ChatUpstage`
`ChatAI21`	✅	✅	✅	❌
`ChatClovaX`	✅	✅	✅	✅
`ChatNebius`	✅	✅	✅	✅
`ChatParallel`	✅	❌	✅	❌
`ChatCloudflareWorkersAI`	❌	✅	✅	❌
`ChatMoonshot`	✅	✅	✅	✅
`ChatAmazonNova`	✅	✅	✅
`ChatAppleFoundationModels`	✅	✅	✅	❌
`ChatGradient`
`ChatWriter`	✅	✅	✅	❌
`ChatCrusoe`	✅	✅	✅	❌
`ChatSarvam`	✅	✅	✅	❌
`ChatContextual`	❌	❌	❌	❌
`SpendGuardChatModel`
`ModelScopeChatEndpoint`
`ChatAIMLAPI`	✅	✅	✅	✅
`ChatDoubleword`	✅	✅	✅	❌
`ChatPredictionGuard`
`ChatKinetica`
`ChatXinference`	✅	✅	✅	❌
`ChatAbso`
`ChatRunPod`
`ChatFeatherlessAI`	✅	❌	❌	❌
`ChatAlephantAI`
`ChatPipeshift`	✅	❌	❌	✅
`ChatNeuralwatt`	✅	✅	✅	❌
`ChatEmpirioLabs`	✅	✅	✅	✅
`ChatTelnyx`	✅	✅	✅	❌
`ChatNetmind`	✅	✅	✅	❌
`ChatGreenNode`	✅	✅	✅	✅
`ChatSeekrFlow`	✅	✅	✅	❌
`ChatKalibr`	❌	❌	❌	❌
`ChatThalam`	✅	✅	✅	✅
`ChatKServe`	✅	✅	✅	✅
`FuturMix`	✅	✅	✅	✅	N/A
`Auxen`	✅	✅	✅	❌	N/A
`DaoXE`	✅	✅	✅	✅	N/A
`1Claw`	✅	✅	✅	❌	N/A
`Snowflake Cortex REST API`	✅	✅	✅	❌	N/A
`TokenMix`	✅	✅	✅	❌	N/A
`Apertis`					N/A

If you’d like to contribute an integration, see Contributing integrations.

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Popular Providers

Integrations by component

Featured models

Routers & proxies

Chat Completions API

All chat models

​Featured models

​Routers & proxies

​Chat Completions API

​All chat models

Featured models

Routers & proxies

Chat Completions API

All chat models