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Devstral Small 2

Devstral Small 2 is a 24B agentic coding model with 68.0% on SWE-bench Verified, a context window of 256K tokens, and multimodal input support. Devstral Small 2 matches models up to five times its size on coding benchmarks.

Tool Use
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'mistral/devstral-small-2',
  prompt: 'Why is the sky blue?'
})
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About Devstral Small 2

Devstral Small 2 is Mistral AI's second-generation compact software engineering agent, introduced alongside Devstral 2 as the smaller tier of the family. At 24B parameters, it scores 68.0% on SWE-bench Verified, matching models up to five times its size.

The key additions over the original Devstral Small are a context window of 256K tokens (enabling full-repository context) and multimodal input support. Agents can now process images alongside code. This makes Devstral Small 2 useful for UI-debugging workflows where you correlate screenshots of broken interfaces with frontend code, or for reading architecture diagrams in documentation.

Devstral Small 2 is released under Apache 2.0.