Releases
Mistral opens Large 4 for public preview
On October 6, 2026, Mistral AI placed Mistral Large 4 in public preview as Open v26.10. The open-weight multimodal model uses a granular Mixture-of-Experts design with 49B active parameters out of 1.05T total parameters. Its vision encoder has 1.6B parameters. It offers a 1M-token context window, priced at $1.36 input, $0.14 cached input, and $4.18 output per million tokens.
Mistral AI dated the model release October 6, 2026. The documentation marks it as a Public Preview under Open v26.10. Its model identifier is mistral-large-4. Mistral positions it as a general-purpose multimodal model with open weights and a granular Mixture-of-Experts architecture.
The model has 49B active parameters out of 1.05T total parameters. Its vision encoder contains 1.6B parameters. The context window reaches 1M tokens.
The API supports Structured Outputs, Function Calling, Document QnA, Prefix, and Chat Completions through /v1/chat/completions and /v1/conversations. Batching uses /v1/batch. Agents & Conversations and Built-In Tools use /v1/agents and /v1/conversations.
The page lists prices of $1.36 per million input tokens, $0.14 for cached input, and $4.18 for output. It also displays a second set of figures: $0.68, $0.07, and $2.09 for the same three categories.
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