# Amazon Nova Experimental Chat 10 20 vs Command A

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-command-a
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 8 categories and Command A in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 10 20 leads 41.6 to 27.2.
- Command A has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| Provider | Amazon | Cohere |
| Noometry Index | 42.1 | 36.5 |
| Rank | 118 | 215 |
| Context | — | 256K |
| Input $/M | — | $2.50 |
| Output $/M | — | $10 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- Command A: 27.2 (#322)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Coding | 1412 | 1330 |
| Aider Polyglot | — | 12% |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 10 20: —
- Command A: 35.9 (#40)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 57.1% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- Command A: 18.3 (#283)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1326 |
| Kagi LLM Benchmark | — | 28.8% |
| DTBench | — | 61.3% |
| LMCA | — | 10.3% |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- Command A: 36.2 (#171)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Math | 1425 | 1300 |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- Command A: 37.1 (#159)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Expert | 1386 | 1295 |
| Vectara Hallucination Rate | — | 9.3% |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- Command A: 45.3 (#170)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Non-English | 1372 | 1313 |
| LMArena Chinese | 1404 | 1327 |
| LMArena French | 1425 | 1351 |
| LMArena German | 1391 | 1341 |
| LMArena Japanese | 1360 | 1285 |
| LMArena Korean | 1324 | 1285 |
| LMArena Russian | 1371 | 1314 |
| LMArena Spanish | 1382 | 1347 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- Command A: 69.1 (#177)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Instruction Following | 1365 | 1309 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- Command A: 40.6 (#151)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Longer Query | 1370 | 1334 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- Command A: 47.6 (#208)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Command A |
|---|---|---|
| LMArena Text | 1394 | 1331 |
| LMArena Creative Writing | 1318 | 1319 |
| LMArena Multi-Turn | 1364 | 1339 |
| EQ-Bench Creative Writing | — | 1145 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Command A?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 36.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Command A better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 27.2 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and Command A share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Command A has 24.