Mistral Large 4 Now Available Through Vercel's AI Gateway
Vercel has added Mistral Large 4 to its AI Gateway, giving developers access to the open-weight, natively multimodal model with a single API key. According to Vercel, no separate Mistral account is needed.
- Mistral Large 4 is now available on Vercel's AI Gateway under the ID mistral/mistral-large-4.
- Vercel describes it as an open-weight, natively multimodal model combining reasoning with text and image understanding.
- Access works with one API key and no separate Mistral account.
- Supported interfaces include the AI SDK, Chat Completions API, Responses API and Anthropic Messages API.
- Coding agents can use it after running npx vercel ai-gateway setup.
What Mistral Large 4 offers
Vercel describes Mistral Large 4 as an open-weight, natively multimodal model that combines reasoning with text and image understanding. The company says it is useful for cyber defense, manufacturing and finance workflows.
The announcement does not include benchmark results, pricing or other performance figures, so the claims about suitable use cases come from Vercel's description alone.
How developers can access it
The model is available under the identifier mistral/mistral-large-4. Vercel lists several ways to call it:
- the AI SDK
- the OpenAI-compatible Chat Completions API
- the Responses API
- the Anthropic Messages API
Developers can also select the model in a coding agent connected to AI Gateway. For that route, Vercel instructs users to run npx vercel ai-gateway setup and then choose mistral/mistral-large-4 in the agent's model settings. Claude Code appears among the listed options.
Vercel's example uses the AI SDK's streamText function with the model set to mistral/mistral-large-4 and a prompt asking it to fix a failing test and verify the change.
What AI Gateway does
AI Gateway is Vercel's single API for calling models. According to Vercel, it also handles usage and cost tracking, and lets teams configure routing, retries and failover. Users can authenticate with an AI Gateway API key or bring their own provider key.
Vercel also points to a model playground where Mistral Large 4 can be tried, as well as a model catalog for browsing other available models.
What it means for developers
For teams already routing requests through AI Gateway, the addition means they can try Mistral Large 4 without opening a separate account with Mistral or changing their integration approach. Because the model is reachable through several API formats, existing code written for the OpenAI-compatible or Anthropic-style interfaces can target it by changing the model identifier. Teams that use a coding agent connected to the gateway can also switch to the model from the agent's settings.
Vercel: Mistral Large 4 now available on AI Gateway
