Model comparison
Devstral Small 2505 vs Magistral Small
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 30.2 on the Noometry Index.
Last verified . 3 shared benchmarks.
Mistral AISummary
- They share 3 benchmarks with published results for both. Devstral Small 2505 scores higher in 2 categories and Magistral Small in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Devstral Small 2505 leads 19.7 to 6.8.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 37.7% for Devstral Small 2505 and 6.3% for Magistral Small.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.50 / $1.50 for Magistral Small.
Side by side
| Devstral Small 2505 | Magistral Small | |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 34.3 | 30.2 |
| Released | 2025-05-07 | 2025-06-10 |
| Weights | Open | Open |
| Context window | 128K | 128K |
| Max output | 128K | 40K |
| Input $ / M tokens | $0.10 | $0.50 |
| Output $ / M tokens | $0.30 | $1.50 |
| Results tracked | 4 | 10 |
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Category by category
Coding Too close to call
Devstral Small 2505: 38.9 (#166), Magistral Small: 38.4 (#176)
| Benchmark | Devstral Small 2505 | Magistral Small |
|---|---|---|
| SciCode | 28.8% | 35.2% |
| SWE-bench Verified (bash only) | 56.4% | — |
Reasoning Devstral Small 2505 leads
Devstral Small 2505: 19.7 (#252), Magistral Small: 6.8 (#350)
| Benchmark | Devstral Small 2505 | Magistral Small |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | 6.3% |
| CritPt | 0% | 0.3% |
| ARC-AGI-2 | — | 0% |
| ARC-AGI-1 | — | 5% |
| Chess Puzzles | — | 3% |
| DTBench | — | 61.3% |
| Epoch Capabilities Index | — | 133.19 |
Math Not comparable
Devstral Small 2505: —, Magistral Small: 26.2 (#261)
| Benchmark | Devstral Small 2505 | Magistral Small |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 30% |
Knowledge Not comparable
Devstral Small 2505: —, Magistral Small: 30.9 (#223)
| Benchmark | Devstral Small 2505 | Magistral Small |
|---|---|---|
| GPQA Diamond | — | 56.1% |
Frequently asked questions
Is Devstral Small 2505 better than Magistral Small?
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 30.2 on the Noometry Index.
Which is cheaper, Devstral Small 2505 or Magistral Small?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Magistral Small lists at $0.50 and $1.50.
Is Devstral Small 2505 or Magistral Small better for coding?
They score almost the same on coding (38.9 vs 38.4); test both on your own repository before choosing.
Which has the bigger context window?
Both accept 128K tokens.
How many benchmarks do Devstral Small 2505 and Magistral Small share?
3 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Magistral Small has 10.