Model comparison
Devstral Small 2505 vs Qwen3-Next 80B-A3B Instruct
Qwen3-Next 80B-A3B Instruct is the stronger model overall, scoring 43.0 to 34.3 on the Noometry Index. Devstral Small 2505 costs 5.8× less per token, which makes it the better buy when Qwen3-Next 80B-A3B Instruct's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Mistral AI
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. Devstral Small 2505 scores higher in 0 categories and Qwen3-Next 80B-A3B Instruct in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3-Next 80B-A3B Instruct leads 31.1 to 19.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 37.7% for Devstral Small 2505 and 66.7% for Qwen3-Next 80B-A3B Instruct.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.50 / $2 for Qwen3-Next 80B-A3B Instruct.
- Qwen3-Next 80B-A3B Instruct accepts more context: 131K tokens versus 128K.
Side by side
| Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct | |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 34.3 | 43.0 |
| Released | 2025-05-07 | 2025-09 |
| Weights | Open | Open |
| Context window | 128K | 131K |
| Max output | 128K | 33K |
| Input $ / M tokens | $0.10 | $0.50 |
| Output $ / M tokens | $0.30 | $2 |
| Results tracked | 4 | 25 |
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Category by category
Coding Qwen3-Next 80B-A3B Instruct leads
Devstral Small 2505: 38.9 (#166), Qwen3-Next 80B-A3B Instruct: 42.5 (#98)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1440 |
Reasoning Qwen3-Next 80B-A3B Instruct leads
Devstral Small 2505: 19.7 (#252), Qwen3-Next 80B-A3B Instruct: 31.1 (#81)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | 66.7% |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1428 |
Math Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 38.8 (#126)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| Omni-MATH | — | 46.7% |
| LMArena Math | — | 1440 |
Knowledge Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 41.8 (#106)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| MMLU-Pro | — | 78.6% |
| Vectara Hallucination Rate | — | 9.3% |
| GPQA (HELM) | — | 63% |
| LMArena Expert | — | 1417 |
Multilingual Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 52.1 (#93)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| LMArena Non-English | — | 1407 |
| LMArena Chinese | — | 1460 |
| LMArena French | — | 1413 |
| LMArena German | — | 1417 |
| LMArena Japanese | — | 1395 |
| LMArena Korean | — | 1364 |
| LMArena Russian | — | 1404 |
| LMArena Spanish | — | 1435 |
Instruction Following Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 70.8 (#159)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| IFEval | — | 81% |
| LMArena Instruction Following | — | 1389 |
Long Context Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 37.0 (#223)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| Fiction.LiveBench | — | 55.6% |
| LMArena Longer Query | — | 1403 |
Writing & Preference Not comparable
Devstral Small 2505: —, Qwen3-Next 80B-A3B Instruct: 58.0 (#121)
| Benchmark | Devstral Small 2505 | Qwen3-Next 80B-A3B Instruct |
|---|---|---|
| LMArena Text | — | 1417 |
| LMArena Creative Writing | — | 1334 |
| WildBench | — | 80.7% |
| LMArena Multi-Turn | — | 1416 |
Frequently asked questions
Is Devstral Small 2505 better than Qwen3-Next 80B-A3B Instruct?
Qwen3-Next 80B-A3B Instruct is the stronger model overall, scoring 43.0 to 34.3 on the Noometry Index. Devstral Small 2505 costs 5.8× less per token, which makes it the better buy when Qwen3-Next 80B-A3B Instruct's lead doesn't matter for your workload.
Which is cheaper, Devstral Small 2505 or Qwen3-Next 80B-A3B Instruct?
Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Qwen3-Next 80B-A3B Instruct lists at $0.50 and $2.
Is Devstral Small 2505 or Qwen3-Next 80B-A3B Instruct better for coding?
Qwen3-Next 80B-A3B Instruct scores higher on coding benchmarks: 42.5 versus 38.9 in the Noometry coding category.
Which has the bigger context window?
Qwen3-Next 80B-A3B Instruct does, with 131K tokens against 128K.
How many benchmarks do Devstral Small 2505 and Qwen3-Next 80B-A3B Instruct share?
1 benchmark has published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Qwen3-Next 80B-A3B Instruct has 25.