Model comparison
Amazon Nova Experimental Chat 10 20 vs Gemini 2.5 Flash
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 39.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
GoogleSummary
- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 4 categories and Gemini 2.5 Flash in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 10 20 leads 27.3 to 18.2.
Side by side
| Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash | |
|---|---|---|
| Provider | Amazon | |
| Noometry Index | 41.5 | 39.0 |
| 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 | 17 | 54 |
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Category by category
Coding Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.0 (#123), Gemini 2.5 Flash: 35.5 (#210)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Coding | 1413 | 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 20: —, Gemini 2.5 Flash: 30.6 (#67)
| Benchmark | Amazon Nova Experimental Chat 10 20 | 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 20 leads
Amazon Nova Experimental Chat 10 20: 27.3 (#110), Gemini 2.5 Flash: 18.2 (#271)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1396 | 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 | — | 143.04 |
| ForecastBench | — | 60.6 |
Math Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 20: 36.2 (#121), Gemini 2.5 Flash: 38.1 (#87)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Math | 1425 | 1415 |
| OTIS Mock AIME 2024-2025 | — | 73.1% |
| Omni-MATH | — | 38.5% |
| FrontierMath (Feb 2025 set) | — | 4.8% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 37.8 (#142), Gemini 2.5 Flash: 36.1 (#162)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Expert | 1385 | 1426 |
| Humanity's Last Exam | — | 12.1% |
| MMLU-Pro | — | 63.9% |
| Confabulations | — | 16.8% |
| Vectara Hallucination Rate | — | 7.8% |
| GPQA (HELM) | — | 39% |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 20: —, Gemini 2.5 Flash: 41.2 (#31)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Vision | — | 1254 |
| GeoBench | — | 76% |
| VPCT | — | 46.2% |
| SpatialViz-Bench | — | 36.9% |
Multilingual Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 20: 49.7 (#127), Gemini 2.5 Flash: 52.5 (#83)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Non-English | 1372 | 1410 |
| LMArena Chinese | 1405 | 1450 |
| LMArena French | 1426 | 1433 |
| LMArena German | 1391 | 1419 |
| LMArena Japanese | 1355 | 1403 |
| LMArena Korean | 1327 | 1385 |
| LMArena Russian | 1371 | 1415 |
| LMArena Spanish | 1381 | 1421 |
Instruction Following Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 20: 72.3 (#136), Gemini 2.5 Flash: 75.9 (#50)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1365 | 1405 |
| IFEval | — | 89.8% |
Long Context Gemini 2.5 Flash leads
Amazon Nova Experimental Chat 10 20: 41.7 (#128), Gemini 2.5 Flash: 47.5 (#16)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Longer Query | 1370 | 1419 |
| Fiction.LiveBench | — | 77.8% |
Writing & Preference Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 56.9 (#131), Gemini 2.5 Flash: 54.0 (#153)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Text | 1394 | 1417 |
| LMArena Creative Writing | 1318 | 1400 |
| LMArena Multi-Turn | 1364 | 1408 |
| Short-Story Creative Writing | — | 76.5% |
| EQ-Bench Creative Writing | — | 1137 |
| WildBench | — | 81.7% |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Gemini 2.5 Flash?
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 39.0 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Gemini 2.5 Flash better for coding?
Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.0 versus 35.5 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Gemini 2.5 Flash share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Gemini 2.5 Flash has 54.