# Devstral Small 2505 vs o1-pro

> Devstral Small 2505 is the stronger model overall, scoring 34.3 to 31.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/devstral-small-vs-o1-pro
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- 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.

## Snapshot

| | Devstral Small 2505 | o1-pro |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Noometry Index | 34.3 | 31.5 |
| Rank | 233 | 271 |
| Context | 128K | 200K |
| Input $/M | $0.10 | $150 |
| Output $/M | $0.30 | $600 |
| Weights | Open | Proprietary |

## Coding

- 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

- 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

- Devstral Small 2505: —
- o1-pro: 29.7 (#234)

| Benchmark | Devstral Small 2505 | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |

## FAQ

### 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.