Model comparison
Devstral Small 2505 vs o1-pro
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Mistral AISummary
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $150 / $600 for o1-pro.
- o1-pro accepts more context: 200K tokens versus 128K.
- Devstral Small 2505 has downloadable open weights; the other is API-only.
Side by side
| Devstral Small 2505 | o1-pro | |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Noometry Index | 34.3 | 31.5 |
| Released | 2025-05-07 | 2025-03-19 |
| Weights | Open | Proprietary |
| Context window | 128K | 200K |
| Max output | 128K | 100K |
| Input $ / M tokens | $0.10 | $150 |
| Output $ / M tokens | $0.30 | $600 |
| Results tracked | 4 | 3 |
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Category by category
Coding Not comparable
Devstral Small 2505: 38.9 (#166), o1-pro: —
| Benchmark | Devstral Small 2505 | o1-pro |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
Reasoning Too close to call
Devstral Small 2505: 19.7 (#252), o1-pro: 20.4 (#239)
| Benchmark | Devstral Small 2505 | o1-pro |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| ARC-AGI-1 | — | 23.3% |
| CritPt | 0% | — |
| EnigmaEval | — | 6.1% |
Knowledge Not comparable
Devstral Small 2505: —, o1-pro: 29.7 (#234)
| Benchmark | Devstral Small 2505 | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
Frequently asked questions
Is Devstral Small 2505 better than o1-pro?
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 31.5 on the Noometry Index.
Which is cheaper, Devstral Small 2505 or o1-pro?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; o1-pro lists at $150 and $600.
Which has the bigger context window?
o1-pro does, with 200K tokens against 128K.
How many benchmarks do Devstral Small 2505 and o1-pro share?
0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and o1-pro has 3.