# Codestral vs Devstral Small 2505

> Devstral Small 2505 is the stronger model overall, scoring 34.3 to 30.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codestral-vs-devstral-small
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Codestral scores higher in 1 category and Devstral Small 2505 in 1 category; one gap is clear of the uncertainty.
- The widest gap is in coding, where Devstral Small 2505 leads 38.9 to 27.3.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 32.5% for Codestral and 37.7% for Devstral Small 2505.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.30 / $0.90 for Codestral.
- Codestral accepts more context: 256K tokens versus 128K.
- Devstral Small 2505 has downloadable open weights; the other is API-only.

## Snapshot

| | Codestral | Devstral Small 2505 |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 30.6 | 34.3 |
| Rank | 290 | 233 |
| Context | 256K | 128K |
| Input $/M | $0.30 | $0.10 |
| Output $/M | $0.90 | $0.30 |
| Weights | Proprietary | Open |

## Coding

- Codestral: 27.3 (#321)
- Devstral Small 2505: 38.9 (#166)

| Benchmark | Codestral | Devstral Small 2505 |
|---|---|---|
| SWE-bench Verified (bash only) | — | 56.4% |
| Aider Polyglot | 11.1% | — |
| SciCode | — | 28.8% |
| BigCodeBench Instruct | 41.8% | — |
| BigCodeBench Complete | 52.5% | — |
| ALE-Bench | 137.78 | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |

## Reasoning

- Codestral: 19.8 (#251)
- Devstral Small 2505: 19.7 (#252)

| Benchmark | Codestral | Devstral Small 2505 |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | 37.7% |
| CritPt | — | 0% |

## FAQ

### Is Codestral better than Devstral Small 2505?

Devstral Small 2505 is the stronger model overall, scoring 34.3 to 30.6 on the Noometry Index.

### Which is cheaper, Codestral or Devstral Small 2505?

Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Codestral lists at $0.30 and $0.90.

### Is Codestral or Devstral Small 2505 better for coding?

Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 27.3 in the Noometry coding category.

### Which has the bigger context window?

Codestral does, with 256K tokens against 128K.

### How many benchmarks do Codestral and Devstral Small 2505 share?

1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and Devstral Small 2505 has 4.