# Amazon Nova Experimental Chat 10 09 vs Command A

> Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-09-vs-command-a
- 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 5 categories and Command A in 1 category; 4 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 10 09 leads 40.2 to 27.2.
- Command A has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| Provider | Amazon | Cohere |
| Noometry Index | 41.9 | 36.5 |
| Rank | 126 | 215 |
| Context | — | 256K |
| Input $/M | — | $2.50 |
| Output $/M | — | $10 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 09: 40.2 (#145)
- Command A: 27.2 (#322)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Coding | 1370 | 1330 |
| Aider Polyglot | — | 12% |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 10 09: —
- Command A: 35.9 (#40)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 57.1% |

## Reasoning

- Amazon Nova Experimental Chat 10 09: 27.3 (#120)
- Command A: 18.3 (#283)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1326 |
| Kagi LLM Benchmark | — | 28.8% |
| DTBench | — | 61.3% |
| LMCA | — | 10.3% |

## Math

- Amazon Nova Experimental Chat 10 09: —
- Command A: 36.2 (#171)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Math | — | 1300 |

## Knowledge

- Amazon Nova Experimental Chat 10 09: —
- Command A: 37.1 (#159)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| Vectara Hallucination Rate | — | 9.3% |
| LMArena Expert | — | 1295 |

## Multilingual

- Amazon Nova Experimental Chat 10 09: 47.3 (#150)
- Command A: 45.3 (#170)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Non-English | 1340 | 1313 |
| LMArena Chinese | 1341 | 1327 |
| LMArena French | — | 1351 |
| LMArena German | — | 1341 |
| LMArena Japanese | — | 1285 |
| LMArena Korean | — | 1285 |
| LMArena Russian | — | 1314 |
| LMArena Spanish | — | 1347 |

## Instruction Following

- Amazon Nova Experimental Chat 10 09: 69.4 (#172)
- Command A: 69.1 (#177)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Instruction Following | 1315 | 1309 |

## Long Context

- Amazon Nova Experimental Chat 10 09: 40.5 (#152)
- Command A: 40.6 (#151)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Longer Query | 1333 | 1334 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 09: 54.7 (#149)
- Command A: 47.6 (#208)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Command A |
|---|---|---|
| LMArena Text | 1364 | 1331 |
| LMArena Creative Writing | 1307 | 1319 |
| LMArena Multi-Turn | 1355 | 1339 |
| EQ-Bench Creative Writing | — | 1145 |

## FAQ

### Is Amazon Nova Experimental Chat 10 09 better than Command A?

Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 36.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 09 or Command A better for coding?

Amazon Nova Experimental Chat 10 09 scores higher on coding benchmarks: 40.2 versus 27.2 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 09 and Command A share?

9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Command A has 24.