Model comparison
Amazon Nova Experimental Chat 10 09 vs Gemini 2.5 Flash
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 39.3 on the Noometry Index.
Last verified . 9 shared benchmarks.
GoogleSummary
- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 3 categories and Gemini 2.5 Flash in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 10 09 leads 27.3 to 18.1.
Side by side
| Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash | |
|---|---|---|
| Provider | Amazon | |
| Noometry Index | 41.9 | 39.3 |
| Released | — | 2025-04-17 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 9 | 54 |
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Category by category
Coding Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 40.2 (#145), Gemini 2.5 Flash: 35.8 (#220)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Coding | 1370 | 1424 |
| SWE-bench Verified (bash only) | — | 28.7% |
| Aider Polyglot | — | 55.1% |
| WeirdML | — | 41.9% |
| ALE-Bench | — | 661.88 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 09: —, Gemini 2.5 Flash: 30.8 (#74)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| Terminal-Bench | — | 17.1% |
| Berkeley Function Calling Leaderboard | — | 56.2% |
| TheAgentCompany | — | 41.1% |
| BALROG | — | 33.5% |
| Vending-Bench 2 | — | 548.84 |
Reasoning Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 27.3 (#120), Gemini 2.5 Flash: 18.1 (#286)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1422 |
| ARC-AGI-2 | — | 2.5% |
| SimpleBench | — | 41.2% |
| Kagi LLM Benchmark | — | 56.8% |
| ARC-AGI-1 | — | 33.3% |
| CritPt | — | 1.1% |
| EnigmaEval | — | 2.7% |
| DTBench | — | 76.5% |
| LMCA | — | 27.5% |
| Epoch Capabilities Index | — | 143.03 |
| ForecastBench | — | 60.6 |
Math Not comparable
Amazon Nova Experimental Chat 10 09: —, Gemini 2.5 Flash: 39.9 (#98)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 73.1% |
| Omni-MATH | — | 38.5% |
| LMArena Math | — | 1415 |
| FrontierMath (Feb 2025 set) | — | 4.8% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, Gemini 2.5 Flash: 36.4 (#168)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| Humanity's Last Exam | — | 12.1% |
| MMLU-Pro | — | 63.9% |
| Confabulations | — | 16.8% |
| Vectara Hallucination Rate | — | 7.8% |
| GPQA (HELM) | — | 39% |
| LMArena Expert | — | 1426 |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 09: —, Gemini 2.5 Flash: 41.8 (#32)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Vision | — | 1253 |
| GeoBench | — | 76% |
| VPCT | — | 46.2% |
| SpatialViz-Bench | — | 36.9% |
Multilingual Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 09: 47.3 (#150), Gemini 2.5 Flash: 52.3 (#88)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Non-English | 1340 | 1409 |
| LMArena Chinese | 1341 | 1450 |
| LMArena French | — | 1433 |
| LMArena German | — | 1418 |
| LMArena Japanese | — | 1405 |
| LMArena Korean | — | 1385 |
| LMArena Russian | — | 1415 |
| LMArena Spanish | — | 1421 |
Instruction Following Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 09: 69.4 (#172), Gemini 2.5 Flash: 75.7 (#54)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1315 | 1405 |
| IFEval | — | 89.8% |
Long Context Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 09: 40.5 (#152), Gemini 2.5 Flash: 47.5 (#17)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Longer Query | 1333 | 1419 |
| Fiction.LiveBench | — | 77.8% |
Writing & Preference Too close to call
Amazon Nova Experimental Chat 10 09: 54.7 (#149), Gemini 2.5 Flash: 53.8 (#157)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Text | 1364 | 1417 |
| LMArena Creative Writing | 1307 | 1400 |
| LMArena Multi-Turn | 1355 | 1408 |
| Short-Story Creative Writing | — | 76.5% |
| EQ-Bench Creative Writing | — | 1137 |
| WildBench | — | 81.7% |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than Gemini 2.5 Flash?
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 39.3 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 09 or Gemini 2.5 Flash better for coding?
Amazon Nova Experimental Chat 10 09 scores higher on coding benchmarks: 40.2 versus 35.8 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and Gemini 2.5 Flash share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Gemini 2.5 Flash has 54.