Model comparison
Amazon Nova Experimental Chat 10 20 vs Gemini 3.8 Flash
Gemini 3.8 Flash is the stronger model overall, scoring 61.8 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 3.8 Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 28.4.
Side by side
| Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash | |
|---|---|---|
| Provider | Amazon | |
| Noometry Index | 42.1 | 61.8 |
| Released | — | 2026-09-02 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.75 |
| Output $ / M tokens | — | $3.75 |
| Results tracked | 17 | 50 |
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Category by category
Coding Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 41.6 (#123), Gemini 3.8 Flash: 59.2 (#15)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Coding | 1412 | 1510 |
| DeepSWE | — | 73.8% |
| FrontierCode | — | 41.2% |
| CursorBench | — | 39.6% |
| LMArena WebDev | — | 1584 |
| FrontierSWE | — | 19.6% |
| SciCode | — | 56.6% |
| WeirdML | — | 84.8% |
| ALE-Bench | — | 1,270 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 20: —, Gemini 3.8 Flash: 41.8 (#21)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| APEX-Agents | — | 64.3% |
| Remote Labor Index | — | 5.8% |
| GDP.pdf | — | 23.4% |
| Vending-Bench 2 | — | 5,094 |
Reasoning Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 28.4 (#106), Gemini 3.8 Flash: 76.9 (#5)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1508 |
| ARC-AGI-2 | — | 89.2% |
| NYT Connections (extended) | — | 97.4% |
| ARC-AGI-1 | — | 98.5% |
| CritPt | — | 18.3% |
| Chess Puzzles | — | 61% |
| Mystery Game Puzzles | — | 47% |
| DTBench | — | 95.7% |
| LMCA | — | 52.9% |
| Surface Evolver Bench | — | 76.9% |
| Epoch Capabilities Index | — | 156.71 |
Math Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 39.0 (#119), Gemini 3.8 Flash: 65.3 (#28)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Math | 1425 | 1528 |
| FrontierMath (Tiers 1-3) | — | 68.4% |
| FrontierMath Tier 4 | — | 22% |
| OTIS Mock AIME 2024-2025 | — | 98.9% |
| ProofBench | — | 48% |
Knowledge Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 38.5 (#144), Gemini 3.8 Flash: 74.8 (#2)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Expert | 1386 | 1524 |
| GPQA Diamond | — | 95.4% |
| Humanity's Last Exam | — | 44.5% |
| SimpleQA Verified | — | 69.7% |
Multimodal Not comparable
Amazon Nova Experimental Chat 10 20: —, Gemini 3.8 Flash: 40.7 (#45)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Vision | — | 1314 |
| Blueprint-Bench 2 | — | 38.6% |
| Furniture Assembly | — | 31.7% |
Multilingual Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 49.5 (#131), Gemini 3.8 Flash: 58.0 (#5)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Non-English | 1372 | 1491 |
| LMArena Chinese | 1404 | 1554 |
| LMArena French | 1425 | 1498 |
| LMArena German | 1391 | 1493 |
| LMArena Japanese | 1360 | 1502 |
| LMArena Korean | 1324 | 1459 |
| LMArena Russian | 1371 | 1515 |
| LMArena Spanish | 1382 | 1485 |
Instruction Following Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 72.1 (#141), Gemini 3.8 Flash: 78.0 (#13)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Instruction Following | 1365 | 1490 |
Long Context Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 41.7 (#133), Gemini 3.8 Flash: 46.3 (#24)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Longer Query | 1370 | 1508 |
Writing & Preference Gemini 3.8 Flash leads
Amazon Nova Experimental Chat 10 20: 56.6 (#136), Gemini 3.8 Flash: 72.2 (#15)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Gemini 3.8 Flash |
|---|---|---|
| LMArena Text | 1394 | 1499 |
| LMArena Creative Writing | 1318 | 1492 |
| LMArena Multi-Turn | 1364 | 1501 |
| EQ-Bench Creative Writing | — | 1748 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Gemini 3.8 Flash?
Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 42.1 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Gemini 3.8 Flash better for coding?
Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 41.6 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Gemini 3.8 Flash share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Gemini 3.8 Flash has 50.