Model comparison
Amazon Nova Experimental Chat 10 20 vs Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 42.1 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 0 categories and Gemini 3.1 Pro Preview in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 28.4.
Side by side
| Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview | |
|---|---|---|
| Provider | Amazon | |
| Noometry Index | 42.1 | 56.7 |
| Released | — | 2026-02-19 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $12 |
| Results tracked | 17 | 71 |
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Category by category
Coding Too close to call
Amazon Nova Experimental Chat 10 20: 41.6 (#123), Gemini 3.1 Pro Preview: 42.5 (#99)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Coding | 1412 | 1484 |
| SWE-bench Verified | — | 75.6% |
| DeepSWE | — | 11.7% |
| LMArena WebDev | — | 1447 |
| SciCode | — | 58.9% |
| GSO | — | 22.6% |
| WeirdML | — | 72.1% |
| MirrorCode | — | 8.9% |
| ALE-Bench | — | 1,161 |
| AlgoTune | — | 2.02 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 20: —, Gemini 3.1 Pro Preview: 37.7 (#34)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| Terminal-Bench | — | 80.2% |
| APEX-Agents | — | 35.3% |
| τ²-bench Banking | — | 26% |
| DeepResearch Bench | — | 47.8% |
| PostTrainBench | — | 22% |
| BALROG | — | 57% |
| ExploitBench | — | 26.1% |
| GBAEval | — | 0.8% |
| GDP.pdf | — | 17% |
| LMArena Search | — | 1211 |
| METR Time Horizons | — | 77% |
| Vending-Bench 2 | — | 3,774 |
Reasoning Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 28.4 (#106), Gemini 3.1 Pro Preview: 71.7 (#12)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1485 |
| ARC-AGI-2 | — | 77.1% |
| SimpleBench | — | 79.6% |
| NYT Connections (extended) | — | 97.4% |
| ARC-AGI-1 | — | 98% |
| CritPt | — | 17.7% |
| Chess Puzzles | — | 55% |
| EnigmaEval | — | 36.8% |
| Thematic Generalization | — | 79.4% |
| EBR-Bench | — | 14.3% |
| Mystery Game Puzzles | — | 34% |
| DTBench | — | 97.1% |
| LMCA | — | 53.8% |
| Epoch Capabilities Index | — | 154.77 |
| ForecastBench | — | 59 |
Math Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 39.0 (#119), Gemini 3.1 Pro Preview: 62.1 (#34)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Math | 1425 | 1485 |
| FrontierMath (Tiers 1-3) | — | 59.6% |
| FrontierMath Tier 4 | — | 26.8% |
| MathArena Final-Answer Competitions | — | 86.5% |
| OTIS Mock AIME 2024-2025 | — | 95.6% |
| ProofBench | — | 26% |
| FrontierMath (Feb 2025 set) | — | 36.9% |
| FrontierMath Tier 4 (v1) | — | 16.7% |
Knowledge Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 38.5 (#144), Gemini 3.1 Pro Preview: 71.8 (#3)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Expert | 1386 | 1485 |
| GPQA Diamond | — | 94.4% |
| Humanity's Last Exam | — | 46.4% |
| SimpleQA Verified | — | 73.5% |
| Vectara Hallucination Rate | — | 10.4% |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 20: —, Gemini 3.1 Pro Preview: 37.9 (#69)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Vision | — | 1296 |
| Blueprint-Bench 2 | — | 26.5% |
| Furniture Assembly | — | 26.7% |
| LMArena Document | — | 1444 |
Multilingual Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 49.5 (#131), Gemini 3.1 Pro Preview: 57.0 (#12)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Non-English | 1372 | 1477 |
| LMArena Chinese | 1404 | 1529 |
| LMArena French | 1425 | 1487 |
| LMArena German | 1391 | 1491 |
| LMArena Japanese | 1360 | 1493 |
| LMArena Korean | 1324 | 1455 |
| LMArena Russian | 1371 | 1498 |
| LMArena Spanish | 1382 | 1479 |
Instruction Following Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 72.1 (#141), Gemini 3.1 Pro Preview: 77.0 (#32)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Instruction Following | 1365 | 1466 |
Long Context Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 41.7 (#133), Gemini 3.1 Pro Preview: 47.4 (#18)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Longer Query | 1370 | 1483 |
| CL-bench | — | 20.8% |
| CL-bench Life | — | 16.9% |
Writing & Preference Gemini 3.1 Pro Preview leads
Amazon Nova Experimental Chat 10 20: 56.6 (#136), Gemini 3.1 Pro Preview: 66.1 (#37)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.1 Pro Preview |
|---|---|---|
| LMArena Text | 1394 | 1481 |
| LMArena Creative Writing | 1318 | 1482 |
| LMArena Multi-Turn | 1364 | 1488 |
| EQ-Bench Creative Writing | — | 1491 |
| EQ-Bench 4 | — | 1142 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 42.1 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Gemini 3.1 Pro Preview better for coding?
They score almost the same on coding (41.6 vs 42.5); test both on your own repository before choosing.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Gemini 3.1 Pro Preview share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Gemini 3.1 Pro Preview has 71.