Model comparison
Devstral 2 / Devstral Small 2 vs Devstral Medium & Small 1.1 (25.07)
- Input
- $0.40 / 1M tokens (Devstral 2); $0.10 / 1M tokens (Devstral Small 2)
- Output
- $2.00 / 1M tokens (Devstral 2); $0.30 / 1M tokens (Devstral Small 2)
- Context
- 256K
- Released
- 2025-12-09
- Input
- $0.10 / 1M tokens (Devstral Small 1.1); $0.40 / 1M tokens (Devstral Medium)
- Output
- $0.30 / 1M tokens (Devstral Small 1.1); $2.00 / 1M tokens (Devstral Medium)
- Context
- 128K
- Released
- 2025-07-10
Devstral 2 / Devstral Small 2 scores higher on 1 of the 1 benchmarks both models report; Devstral Medium & Small 1.1 (25.07) is cheaper on input tokens ($0.1 vs $0.4 per 1M, 4×); Devstral 2 / Devstral Small 2 has the larger context window (256K vs 128K).
Specs and pricing side by side
| Spec | Devstral 2 / Devstral Small 2 | Devstral Medium & Small 1.1 (25.07) |
|---|---|---|
| Maker | Mistral AI | Mistral AIsame |
| Released | 2025-12-09 | 2025-07-10 |
| Context window | 256K | 128K |
| Max output | 256K | not published |
| Input price | $0.40 / 1M tokens (Devstral 2); $0.10 / 1M tokens (Devstral Small 2) | $0.10 / 1M tokens (Devstral Small 1.1); $0.40 / 1M tokens (Devstral Medium) |
| Output price | $2.00 / 1M tokens (Devstral 2); $0.30 / 1M tokens (Devstral Small 2) | $0.30 / 1M tokens (Devstral Small 1.1); $2.00 / 1M tokens (Devstral Medium) |
| Parameters | Devstral 2: 123B; Devstral Small 2: 24B | Devstral Small 1.1: 24B; Devstral Medium: not disclosed |
| License | Devstral 2: Modified MIT; Devstral Small 2: Apache 2.0 | Devstral Small 1.1: Apache 2.0; Devstral Medium: proprietary (API only) |
| Weights | Open weights | Open weightssame |
| Modalities | Text | Textsame |
| Knowledge cutoff | 2025 | 2025same |
Benchmarks both models report
| Benchmark | Devstral 2 / Devstral Small 2 | Devstral Medium & Small 1.1 (25.07) |
|---|---|---|
| SWE-Bench Verified | 72.2% | 53.6% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick Devstral 2 / Devstral Small 2 if…
- You care about SWE-Bench Verified (it scores higher on 1 shared benchmark).
- You need the longer context (256K vs 128K).
- Your use case is: agentic software engineering: exploring codebases and editing multiple files.
Pick Devstral Medium & Small 1.1 (25.07) if…
- Cost matters: input tokens cost 4× less ($0.1 vs $0.4 per 1M).
- Your use case is: open, self-hostable coding agents (Devstral Small 1.1).
FAQ
Which is better, Devstral 2 / Devstral Small 2 or Devstral Medium & Small 1.1 (25.07)?
Devstral 2 / Devstral Small 2 scores higher on 1 of the 1 benchmarks both models report; Devstral Medium & Small 1.1 (25.07) is cheaper on input tokens ($0.1 vs $0.4 per 1M, 4×); Devstral 2 / Devstral Small 2 has the larger context window (256K vs 128K). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Devstral Medium & Small 1.1 (25.07)?
Devstral 2 / Devstral Small 2: $0.40 / 1M tokens (Devstral 2); $0.10 / 1M tokens (Devstral Small 2) input, $2.00 / 1M tokens (Devstral 2); $0.30 / 1M tokens (Devstral Small 2) output. Devstral Medium & Small 1.1 (25.07): $0.10 / 1M tokens (Devstral Small 1.1); $0.40 / 1M tokens (Devstral Medium) input, $0.30 / 1M tokens (Devstral Small 1.1); $2.00 / 1M tokens (Devstral Medium) output (list API prices as published by each maker).
What are the context windows of Devstral 2 / Devstral Small 2 and Devstral Medium & Small 1.1 (25.07)?
Devstral 2 / Devstral Small 2 offers 256K with up to 256K output; Devstral Medium & Small 1.1 (25.07) offers 128K.
Is Devstral 2 / Devstral Small 2 newer than Devstral Medium & Small 1.1 (25.07)?
Devstral 2 / Devstral Small 2 was released 2025-12-09; Devstral Medium & Small 1.1 (25.07) was released 2025-07-10.