Codestral 25.01

2025-01-13 · Publisher : Mistral AI · Domain : Artificial Intelligence

Mistral AI launches Codestral 25.01, an update to its code model with a more efficient architecture and tokenizer, roughly twice as fast in generation and completion, with a 256k-token context.

What changes

  • New architecture and improved tokenizer: code generation and completion roughly 2 times faster than the original version.
  • Model presented as the leader in its weight class for code and a reference for fill-in-the-middle (FIM).
  • More than 80 programming languages; target tasks: FIM, code correction, test generation.
  • Distributed through IDE partners (Continue for VS Code and JetBrains), La Plateforme and Google Cloud Vertex AI.

### Specifications - Context: 256k tokens according to the announcement (the current documentation page shows 128k for codestral-2501, a discrepancy that is not explained). - Modalities: text and code; dedicated FIM endpoint. - License: proprietary (Premier model, API access or deployment on request), weights not published. - Availability: La Plateforme (`codestral-latest`), Vertex AI, private preview on Azure AI Foundry, Amazon Bedrock announced. - API identifier: `codestral-2501` (retired on 11/30/2025 according to the documentation). ### Pricing | Model | Input (USD / M tokens) | Output (USD / M tokens) | |---|---|---| | Codestral (25.01) | 0.3 | 0.9 | Pricing recorded from Mistral's technology page archived on February 3, 2025. ### Benchmarks Scores published by the vendor (Codestral 25.01 versus Codestral 2405 22B): | Benchmark | Codestral 25.01 | Codestral 2405 22B | |---|---|---| | HumanEval (Python) | 86.6% | 81.1% | | MBPP | 80.2% | 78.2% | | LiveCodeBench | 37.9% | 31.5% | | RepoBench | 38.0% | 34.0% | | Spider (SQL) | 66.5% | 63.5% | | HumanEval FIM (average) | 85.9% | 82.1% | ### Key takeaways A fast code completion model, usable in common IDEs and deployable on the customer's side, with a long context for working on large codebases.

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Tags : LLM, Mistral, Codestral, Code, Complétion