Devstral 2
Devstral 2 is a 123B instruction model for software engineering agents. It is designed to explore a codebase with tools and change multiple files. The published checkpoint uses FP8. Mistral marks its serverless model deprecated.
Deprecated API; check access details
Evaluate the model inside its coding tools
The model card supplies local serving and agent integration instructions. Its intended task goes beyond predicting the next code fragment: the agent must inspect files, select tools and complete a code change. The documented context is 256k.Devstral 2 official weight card
Read the company revenue condition
Its Modified MIT license contains a US$20 million company or employer monthly-revenue condition, measured over the preceding month. A separate commercial license is available by arrangement. These terms differ from Devstral Small 2's Apache 2.0 release.Devstral 2 weight license
Separate the deprecated API from weights
The model page records API deprecation on 22 May 2026. The official weight repository remains available. API access is subject to Mistral's retirement schedule; a published model identifier does not guarantee continued service after retirement.Devstral 2 API lifecycle pageDevstral 2 official weight card
Evaluate the complete task
Practical guidance. Use repository tasks that require finding the right files and understanding existing conventions. Record incorrect tool calls, unnecessary edits and incomplete changes. A successful benchmark run depends on the surrounding agent tools and execution budget as well as the checkpoint.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Status | Deprecated API; check access details |
| Access | API, Downloadable |
| Model identifiers | devstral-2512Devstral-2-123B-Instruct-2512 |
| Context window | 256,000 tokens Advertised 256k context. Local capacity depends on the serving configuration. Devstral 2 official weight card |
| API status | Deprecated on 22 May 2026Devstral 2 API lifecycle page |
| Weight license | Modified MIT; revenue condition appliesDevstral 2 weight license |
| Weight repository | mistralai/Devstral-2-123B-Instruct-2512Devstral 2 official weight card |
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