Model comparison
Amazon Nova Experimental Chat 10 09 vs Claude Sonnet 4
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 40.8 on the Noometry Index.
Last verified . 9 shared benchmarks.
Summary
- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 3 categories and Claude Sonnet 4 in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where Amazon Nova Experimental Chat 10 09 leads 40.5 to 33.7.
Side by side
| Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 | |
|---|---|---|
| Provider | Amazon | Anthropic |
| Noometry Index | 41.9 | 40.8 |
| Released | — | 2025-05-22 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 64K |
| Input $ / M tokens | — | $3 |
| Output $ / M tokens | — | $15 |
| Results tracked | 9 | 58 |
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Category by category
Coding Claude Sonnet 4 leads
Amazon Nova Experimental Chat 10 09: 40.2 (#145), Claude Sonnet 4: 43.5 (#88)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Coding | 1370 | 1414 |
| SWE-bench Verified (bash only) | — | 64.9% |
| Aider Polyglot | — | 61.3% |
| SciCode | — | 40% |
| GSO | — | 4.9% |
| WeirdML | — | 46.1% |
| ALE-Bench | — | 655.35 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 09: —, Claude Sonnet 4: 38.5 (#31)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| TheAgentCompany | — | 33.1% |
| Cybench | — | 35% |
| DeepResearch Bench | — | 46.6% |
| OSWorld | — | 43.9% |
| METR Time Horizons | — | 62% |
Reasoning Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 27.3 (#120), Claude Sonnet 4: 22.9 (#187)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1372 |
| ARC-AGI-2 | — | 5.9% |
| SimpleBench | — | 45.5% |
| Kagi LLM Benchmark | — | 73% |
| ARC-AGI-1 | — | 40% |
| CritPt | — | 0.3% |
| EnigmaEval | — | 3.1% |
| DTBench | — | 77.1% |
| LMCA | — | 29% |
| Epoch Capabilities Index | — | 141.69 |
| ForecastBench | — | 60.2 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, Claude Sonnet 4: 43.3 (#80)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 71.1% |
| Omni-MATH | — | 60.2% |
| LMArena Math | — | 1375 |
| MATH Level 5 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 4.1% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, Claude Sonnet 4: 41.8 (#108)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| GPQA Diamond | — | 79.2% |
| Humanity's Last Exam | — | 7.8% |
| MMLU-Pro | — | 84.3% |
| Confabulations | — | 13.2% |
| Vectara Hallucination Rate | — | 10.3% |
| GPQA (HELM) | — | 70.6% |
| LMArena Expert | — | 1372 |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 09: —, Claude Sonnet 4: 26.2 (#121)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Vision | — | 1191 |
| GeoBench | — | 37% |
| VPCT | — | 34% |
| MindCube | — | 44.8% |
Multilingual Too close to call
Amazon Nova Experimental Chat 10 09: 47.3 (#150), Claude Sonnet 4: 46.7 (#156)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Non-English | 1340 | 1333 |
| LMArena Chinese | 1341 | 1350 |
| LMArena French | — | 1363 |
| LMArena German | — | 1331 |
| LMArena Japanese | — | 1302 |
| LMArena Korean | — | 1291 |
| LMArena Russian | — | 1355 |
| LMArena Spanish | — | 1357 |
Instruction Following Claude Sonnet 4 leads
Amazon Nova Experimental Chat 10 09: 69.4 (#172), Claude Sonnet 4: 71.7 (#145)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Instruction Following | 1315 | 1376 |
| IFEval | — | 84% |
Long Context Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 40.5 (#152), Claude Sonnet 4: 33.7 (#259)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Longer Query | 1333 | 1398 |
| Fiction.LiveBench | — | 46.9% |
Writing & Preference Claude Sonnet 4 leads
Amazon Nova Experimental Chat 10 09: 54.7 (#149), Claude Sonnet 4: 57.1 (#132)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Claude Sonnet 4 |
|---|---|---|
| LMArena Text | 1364 | 1351 |
| LMArena Creative Writing | 1307 | 1345 |
| LMArena Multi-Turn | 1355 | 1376 |
| Short-Story Creative Writing | — | 81.4% |
| EQ-Bench Creative Writing | — | 1483 |
| WildBench | — | 83.8% |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than Claude Sonnet 4?
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 40.8 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 09 or Claude Sonnet 4 better for coding?
Claude Sonnet 4 scores higher on coding benchmarks: 43.5 versus 40.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and Claude Sonnet 4 share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Claude Sonnet 4 has 58.