Model comparison
Amazon Nova Experimental Chat 10 09 vs o3
o3 is the stronger model overall, scoring 47.5 to 41.9 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 0 categories and o3 in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3 leads 53.3 to 40.5.
Side by side
| Amazon Nova Experimental Chat 10 09 | o3 | |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 41.9 | 47.5 |
| Released | — | 2025-04-16 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $8 |
| Results tracked | 9 | 63 |
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Category by category
Coding o3 leads
Amazon Nova Experimental Chat 10 09: 40.2 (#145), o3: 46.8 (#64)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Coding | 1370 | 1408 |
| SWE-bench Verified | — | 62.3% |
| SWE-bench Verified (bash only) | — | 58.4% |
| Aider Polyglot | — | 81.3% |
| GSO | — | 8.8% |
| WeirdML | — | 52.4% |
| CadEval | — | 74% |
| ALE-Bench | — | 933.55 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 09: —, o3: 34.5 (#44)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 63% |
| GDPval | — | 30.8% |
| DeepResearch Bench | — | 45.2% |
| OSWorld | — | 23% |
| LMArena Search | — | 1144 |
| METR Time Horizons | — | 65.4% |
Reasoning o3 leads
Amazon Nova Experimental Chat 10 09: 27.3 (#120), o3: 32.0 (#78)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1402 |
| ARC-AGI-2 | — | 6.5% |
| SimpleBench | — | 53.1% |
| Kagi LLM Benchmark | — | 67.6% |
| ARC-AGI-1 | — | 60.8% |
| CritPt | — | 1.4% |
| Chess Puzzles | — | 38% |
| EnigmaEval | — | 13.1% |
| Mystery Game Puzzles | — | 29% |
| DTBench | — | 84.8% |
| LMCA | — | 39.7% |
| Epoch Capabilities Index | — | 146.86 |
| ForecastBench | — | 62.5 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, o3: 50.2 (#58)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 33.3% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| Omni-MATH | — | 71.4% |
| LMArena Math | — | 1426 |
| MATH Level 5 | — | 97.8% |
| FrontierMath (Feb 2025 set) | — | 18.7% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, o3: 54.6 (#52)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| GPQA Diamond | — | 81.8% |
| Humanity's Last Exam | — | 20.3% |
| SimpleQA Verified | — | 49.4% |
| MMLU-Pro | — | 85.9% |
| Confabulations | — | 14.4% |
| GPQA (HELM) | — | 75.3% |
| LMArena Expert | — | 1402 |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 09: —, o3: 41.4 (#36)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Vision | — | 1214 |
| GeoBench | — | 74% |
| VPCT | — | 52% |
Multilingual o3 leads
Amazon Nova Experimental Chat 10 09: 47.3 (#150), o3: 51.7 (#105)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Non-English | 1340 | 1401 |
| LMArena Chinese | 1341 | 1437 |
| LMArena French | — | 1430 |
| LMArena German | — | 1420 |
| LMArena Japanese | — | 1403 |
| LMArena Korean | — | 1370 |
| LMArena Russian | — | 1406 |
| LMArena Spanish | — | 1395 |
Instruction Following o3 leads
Amazon Nova Experimental Chat 10 09: 69.4 (#172), o3: 72.8 (#127)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Instruction Following | 1315 | 1368 |
| IFEval | — | 86.9% |
Long Context o3 leads
Amazon Nova Experimental Chat 10 09: 40.5 (#152), o3: 53.3 (#6)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Longer Query | 1333 | 1372 |
| Fiction.LiveBench | — | 88.9% |
| CL-bench | — | 17.8% |
Writing & Preference o3 leads
Amazon Nova Experimental Chat 10 09: 54.7 (#149), o3: 63.5 (#64)
| Benchmark | Amazon Nova Experimental Chat 10 09 | o3 |
|---|---|---|
| LMArena Text | 1364 | 1410 |
| LMArena Creative Writing | 1307 | 1359 |
| LMArena Multi-Turn | 1355 | 1405 |
| Short-Story Creative Writing | — | 83.9% |
| EQ-Bench Creative Writing | — | 1676 |
| WildBench | — | 86.1% |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than o3?
o3 is the stronger model overall, scoring 47.5 to 41.9 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 09 or o3 better for coding?
o3 scores higher on coding benchmarks: 46.8 versus 40.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and o3 share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and o3 has 63.