Mistral Released December 9, 2025 Synced Mar 10, 2026

Mistral: Devstral 2 2512

Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring codebases and orchestrating changes across multiple files while maintaining architecture-level context. It tracks framework dependencies, detects failures, and retries with corrections—solving challenges like bug fixing and modernizing legacy systems. The model can be fine-tuned to prioritize specific languages or optimize for large enterprise codebases. It is available under a modified MIT license.

Tool use

Why it stands out

262K-token context window handles longer documents and multi-turn conversations without truncation.

Tool use support makes it viable for function-calling and agentic pipelines.

$0.4/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

Text-only input — image or audio workflows require a separate model in the pipeline.

No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for Mistral: Devstral 2 2512.

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release

Mistral: Devstral 2 2512 entered the tracked catalog

December 9, 2025

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Recent changes

LaunchDec 9

Mistral launched Mistral: Devstral 2 2512

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