Devstral 2 2512

Mistral AI
Devstral 2 2512 launch post cover

Cost/1M tokens

input
$0.40
cached
$0.04
output
$2.00
Context
262Ktokens
Released
11mo ago
Size
123Bparameters

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

Not evaluated in DeepSWE 1.1

Arena Text

Best Arena rating per model · Higher is better

Not ranked on Arena Text yet

Arena WebDev

Best Arena rating per model · Higher is better

Arena #151

  1. 1438
    MiMo-V2.5Similar price
  2. 1435
  3. 1357
    Qwen3.5-27BSimilar price
  4. 1342
    GLM 4.6Similar price
  5. 1233
  6. 1228
    Gemini 2.5 ProNearby rank
  7. 1196
    Devstral 2 2512
  8. 1164
  9. 1162

Ahead of 0 of 4 similarly priced models

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Arena Document

Best Arena rating per model · Higher is better

Not ranked on Arena Document yet

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

All published scores

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

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