All Models

Devstral 2

devstral Tool Calling Open Weights

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.

Providers 2
Released Dec 9, 2025
Input Modalities text
Output Modalities text
Tarsk Use coding

Available Providers (2)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Mistral devstral-2512 $0.40/MTok $2.00/MTok 262.1K 262.1K
Vercel AI Gateway mistral/devstral-2 /MTok /MTok 256K 256K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output