Model comparison
Devstral Small 2505 vs Qwen3 8B
Devstral Small 2505 and Qwen3 8B score almost the same on the Noometry Index (34.3 vs 33.7), so choose on price, context window or the category you care about most.
Last verified . 2 shared benchmarks.
Mistral AI
Alibaba (Qwen)Summary
- They share 2 benchmarks with published results for both. Devstral Small 2505 scores higher in 2 categories and Qwen3 8B in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Devstral Small 2505 leads 38.9 to 34.0.
- The biggest single-benchmark swing is SciCode: 28.8% for Devstral Small 2505 and 22.6% for Qwen3 8B.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.18 / $0.70 for Qwen3 8B.
- Qwen3 8B accepts more context: 131K tokens versus 128K.
Side by side
| Devstral Small 2505 | Qwen3 8B | |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 34.3 | 33.7 |
| Released | 2025-05-07 | 2025-04 |
| Weights | Open | Open |
| Context window | 128K | 131K |
| Max output | 128K | 8K |
| Input $ / M tokens | $0.10 | $0.18 |
| Output $ / M tokens | $0.30 | $0.70 |
| Results tracked | 4 | 11 |
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Category by category
Coding Devstral Small 2505 leads
Devstral Small 2505: 38.9 (#166), Qwen3 8B: 34.0 (#248)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| SciCode | 28.8% | 22.6% |
| SWE-bench Verified (bash only) | 56.4% | — |
Agentic & Tool Use Not comparable
Devstral Small 2505: —, Qwen3 8B: 30.2 (#78)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
Reasoning Devstral Small 2505 leads
Devstral Small 2505: 19.7 (#252), Qwen3 8B: 16.6 (#303)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| CritPt | 0% | 0% |
| Kagi LLM Benchmark | 37.7% | — |
| Chess Puzzles | — | 5% |
| DTBench | — | 59.7% |
| LMCA | — | 8.8% |
| Epoch Capabilities Index | — | 136.17 |
Math Not comparable
Devstral Small 2505: —, Qwen3 8B: 34.9 (#191)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 56.1% |
Knowledge Not comparable
Devstral Small 2505: —, Qwen3 8B: 36.1 (#173)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| GPQA Diamond | — | 56.8% |
| Vectara Hallucination Rate | — | 4.8% |
Long Context Not comparable
Devstral Small 2505: —, Qwen3 8B: 37.9 (#210)
| Benchmark | Devstral Small 2505 | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
Frequently asked questions
Is Devstral Small 2505 better than Qwen3 8B?
Devstral Small 2505 and Qwen3 8B score almost the same on the Noometry Index (34.3 vs 33.7), so choose on price, context window or the category you care about most.
Which is cheaper, Devstral Small 2505 or Qwen3 8B?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Qwen3 8B lists at $0.18 and $0.70.
Is Devstral Small 2505 or Qwen3 8B better for coding?
Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 34.0 in the Noometry coding category.
Which has the bigger context window?
Qwen3 8B does, with 131K tokens against 128K.
How many benchmarks do Devstral Small 2505 and Qwen3 8B share?
2 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Qwen3 8B has 11.