Model comparison
Amazon Nova Pro vs Devstral Small 2505
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 31.0 on the Noometry Index.
Last verified . 0 shared benchmarks.
Mistral AISummary
- The widest gap is in coding, where Devstral Small 2505 leads 38.9 to 35.1.
- Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.80 / $3.20 for Amazon Nova Pro.
- Amazon Nova Pro accepts more context: 300K tokens versus 128K.
- Devstral Small 2505 has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Pro | Devstral Small 2505 | |
|---|---|---|
| Provider | Amazon | Mistral AI |
| Noometry Index | 31.0 | 34.3 |
| Released | 2024-12-03 | 2025-05-07 |
| Weights | Proprietary | Open |
| Context window | 300K | 128K |
| Max output | 10K | 128K |
| Input $ / M tokens | $0.80 | $0.10 |
| Output $ / M tokens | $3.20 | $0.30 |
| Results tracked | 38 | 4 |
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Category by category
Coding Devstral Small 2505 leads
Amazon Nova Pro: 35.1 (#229), Devstral Small 2505: 38.9 (#166)
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| SWE-bench Verified (bash only) | — | 56.4% |
| SciCode | — | 28.8% |
| LiveBench Coding | 38.1% | — |
| LMArena Coding | 1270 | — |
Agentic & Tool Use Not comparable
Amazon Nova Pro: 16.7 (#147), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 25% | — |
| TheAgentCompany | 1.7% | — |
Reasoning Too close to call
Amazon Nova Pro: 20.0 (#243), Devstral Small 2505: 19.7 (#252)
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| Kagi LLM Benchmark | — | 37.7% |
| CritPt | — | 0% |
| LiveBench Reasoning | 32.6% | — |
| LMArena Hard Prompts | 1246 | — |
| LiveBench Data Analysis | 48.3% | — |
| Epoch Capabilities Index | 123.8 | — |
| LiveBench | 43.5% | — |
Math Not comparable
Amazon Nova Pro: 28.5 (#243), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| Omni-MATH | 24.2% | — |
| LiveBench Math | 38% | — |
| LMArena Math | 1252 | — |
Knowledge Not comparable
Amazon Nova Pro: 27.4 (#250), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| Humanity's Last Exam | 4.4% | — |
| MMLU-Pro | 67.3% | — |
| Confabulations | 30.1% | — |
| Vectara Hallucination Rate | 5.1% | — |
| GPQA (HELM) | 44.6% | — |
| LMArena Expert | 1211 | — |
| MMLU | 82% | — |
Multimodal Not comparable
Amazon Nova Pro: 25.0 (#126), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| LMArena Vision | 980 | — |
Multilingual Not comparable
Amazon Nova Pro: 39.7 (#223), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| LMArena Non-English | 1234 | — |
| LMArena Chinese | 1244 | — |
| LMArena French | 1271 | — |
| LMArena German | 1243 | — |
| LMArena Japanese | 1200 | — |
| LMArena Korean | 1203 | — |
| LMArena Russian | 1240 | — |
| LMArena Spanish | 1182 | — |
Instruction Following Not comparable
Amazon Nova Pro: 64.9 (#226), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| LiveBench Instruction Following | 67.1% | — |
| IFEval | 81.5% | — |
| LMArena Instruction Following | 1235 | — |
Long Context Not comparable
Amazon Nova Pro: 38.1 (#205), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| LMArena Longer Query | 1255 | — |
Writing & Preference Not comparable
Amazon Nova Pro: 43.9 (#226), Devstral Small 2505: —
| Benchmark | Amazon Nova Pro | Devstral Small 2505 |
|---|---|---|
| LMArena Text | 1259 | — |
| LMArena Creative Writing | 1212 | — |
| Short-Story Creative Writing | 60.5% | — |
| WildBench | 77.7% | — |
| LMArena Multi-Turn | 1246 | — |
| LiveBench Language | 37% | — |
Frequently asked questions
Is Amazon Nova Pro better than Devstral Small 2505?
Devstral Small 2505 is the stronger model overall, scoring 34.3 to 31.0 on the Noometry Index.
Which is cheaper, Amazon Nova Pro 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; Amazon Nova Pro lists at $0.80 and $3.20.
Is Amazon Nova Pro or Devstral Small 2505 better for coding?
Devstral Small 2505 scores higher on coding benchmarks: 38.9 versus 35.1 in the Noometry coding category.
Which has the bigger context window?
Amazon Nova Pro does, with 300K tokens against 128K.
How many benchmarks do Amazon Nova Pro and Devstral Small 2505 share?
0 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and Devstral Small 2505 has 4.