Devstral — Local AI Model by Mistral AI

Written by Jakub Rusinowski · Last updated August 15, 2026

Mistral AI's coding specialists, spanning both generations. The original Devstral Small 24B posts 46.8% on SWE-Bench Verified and remains the easiest to run locally; the second-generation 123B Sparse variant reaches 71.6%, the highest open-source score for code agent tasks at its release. Built for agentic software engineering: multi-file editing, repo navigation, and test-driven development. Apache 2.0 licensed throughout.

Licence

LicenceWhat it permitsApplies to
Apache-2.0Commercial use permitted
Commercial use permitted. No usage restrictions beyond attribution.
Devstral-2 123B, Devstral-2 22B, Devstral Small 24B

Hardware Requirements

Devstral-2 123BMin 75 GB VRAM · Q4_K_M · 262,144 ctx · ollama run devstral:123b
Devstral-2 22BMin 14 GB VRAM · Q4_K_M · 128,000 ctx · ollama run devstral:22b
Devstral Small 24BMin 15 GB VRAM · Q4_K_M · 128,000 ctx · ollama run devstral:24b

Recommended GPU

The cheapest GPU that runs Devstral locally (min 14 GB VRAM) is the AMD Radeon RX 9060 XT 16GB (16 GB).

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AMD Radeon RX 9060 XT 16GB
16 GB VRAM · 160 W board power
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How to Run Locally

Install Ollama then run: ollama run devstral:123b

Minimum VRAM: 14 GB. For best results use Q4_K_M quantization.

Devstral — Frequently Asked Questions

How much VRAM does Devstral need?

Devstral needs about 14 GB VRAM at Q4_K_M quantization for its smallest variant. Variants: Devstral-2 123B (75 GB, Q4_K_M); Devstral-2 22B (14 GB, Q4_K_M); Devstral Small 24B (15 GB, Q4_K_M). On Apple Silicon, unified memory counts toward this requirement.

Can I run Devstral on an RTX 4090 (24 GB)?

Yes — Devstral runs on an RTX 4090 (24 GB) and other 24 GB cards such as the RTX 3090. Smaller variants also fit comfortably on 8–16 GB GPUs at Q4_K_M.

What quantization should I use for Devstral?

Q4_K_M is the best balance of quality and VRAM for Devstral in most cases. Choose Q8_0 for near-lossless quality if you have spare VRAM, or smaller quants (Q3/Q2) only when memory is tight.

How do I run Devstral with Ollama?

Install Ollama, then run: ollama run devstral:123b. This downloads Devstral and starts a local, OpenAI-compatible endpoint — no internet connection is needed after the initial download.

Can I Run Devstral on My GPU?