New Mistral Release Devstral2 And Mistral Vibe Cli 2025

State-of-the-art, open-source agentic coding models and CLI agent.

Today, we're releasing Devstral 2—our next-generation coding model family available in two sizes: Devstral 2 (123B) and Devstral Small 2 (24B). Devstral 2 ships under a modified MIT license, while Devstral Small 2 uses Apache 2.0. Both are open-source and permissively licensed to accelerate distributed intelligence.

We are also introducing Mistral Vibe, a native CLI built for Devstral that enables end-to-end code automation.

Devstral 2: SOTA open model for code agents with a fraction of the parameters of its competitors and achieving 72.2% on SWE-bench Verified.

Up to 7x more cost-efficient than Claude Sonnet at real-world tasks.

Mistral Vibe CLI: Native, open-source agent in your terminal solving software engineering tasks autonomously.

Devstral Small 2: 24B parameter model available via API or deployable locally on consumer hardware.

Compatible with on-prem deployment and custom fine-tuning.

Devstral 2 is a 123B-parameter dense transformer supporting a 256K context window. It reaches 72.2% on SWE-bench Verified—establishing it as one of the best open-weight models while remaining highly cost efficient. Released under a modified MIT license, Devstral sets the open state-of-the-art for code agents.

Devstral Small 2 scores 68.0% on SWE-bench Verified, and places firmly among models up to five times its size while being capable of running locally on consumer hardware.

Source: HackerNews