# Amazon Nova Experimental Chat 10 09 vs Gemini 2.5 Flash

> Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.4 to 39.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-09-vs-gemini-2-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- 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 26.2 to 18.2.

## Snapshot

| | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| Provider | Amazon | Google |
| Noometry Index | 41.4 | 39.0 |
| Rank | 124 | 162 |
| Context | — | 1.05M |
| Input $/M | — | $0.30 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 10 09: 39.6 (#142)
- Gemini 2.5 Flash: 35.5 (#210)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Coding | 1371 | 1424 |
| SWE-bench Verified (bash only) | — | 28.7% |
| Aider Polyglot | — | 55.1% |
| WeirdML | — | 41.9% |
| ALE-Bench | — | 661.88 |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 10 09: —
- Gemini 2.5 Flash: 30.6 (#67)

| 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: 26.2 (#122)
- Gemini 2.5 Flash: 18.2 (#271)

| 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 | — | 143.04 |
| ForecastBench | — | 60.6 |

## Math

- Amazon Nova Experimental Chat 10 09: —
- Gemini 2.5 Flash: 38.1 (#87)

| 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

- Amazon Nova Experimental Chat 10 09: —
- Gemini 2.5 Flash: 36.1 (#162)

| 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

- Amazon Nova Experimental Chat 10 09: —
- Gemini 2.5 Flash: 41.2 (#31)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Vision | — | 1254 |
| GeoBench | — | 76% |
| VPCT | — | 46.2% |
| SpatialViz-Bench | — | 36.9% |

## Multilingual

- Amazon Nova Experimental Chat 10 09: 47.5 (#145)
- Gemini 2.5 Flash: 52.5 (#83)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Non-English | 1341 | 1410 |
| LMArena Chinese | 1345 | 1450 |
| LMArena French | — | 1433 |
| LMArena German | — | 1419 |
| LMArena Japanese | — | 1403 |
| LMArena Korean | — | 1385 |
| LMArena Russian | — | 1415 |
| LMArena Spanish | — | 1421 |

## Instruction Following

- Amazon Nova Experimental Chat 10 09: 69.7 (#167)
- Gemini 2.5 Flash: 75.9 (#50)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1316 | 1405 |
| IFEval | — | 89.8% |

## Long Context

- Amazon Nova Experimental Chat 10 09: 40.6 (#146)
- Gemini 2.5 Flash: 47.5 (#16)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Longer Query | 1334 | 1419 |
| Fiction.LiveBench | — | 77.8% |

## Writing & Preference

- Amazon Nova Experimental Chat 10 09: 55.0 (#144)
- Gemini 2.5 Flash: 54.0 (#153)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Text | 1365 | 1417 |
| LMArena Creative Writing | 1307 | 1400 |
| LMArena Multi-Turn | 1354 | 1408 |
| Short-Story Creative Writing | — | 76.5% |
| EQ-Bench Creative Writing | — | 1137 |
| WildBench | — | 81.7% |

## FAQ

### 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 41.4 to 39.0 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: 39.6 versus 35.5 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.