# C4ai Aya Expanse 8b vs Command A

> Command A is the stronger model overall, scoring 36.5 to 34.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/c4ai-aya-expanse-8b-vs-command-a
- Last updated: 2026-10-11
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 2 categories and Command A in 6 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Command A leads 45.3 to 36.1.

## Snapshot

| | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| Provider | Cohere | Cohere |
| Noometry Index | 34.9 | 36.5 |
| Rank | 229 | 215 |
| Context | — | 256K |
| Input $/M | — | $2.50 |
| Output $/M | — | $10 |
| Weights | Open | Open |

## Coding

- C4ai Aya Expanse 8b: 33.8 (#252)
- Command A: 27.2 (#322)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Coding | 1160 | 1330 |
| Aider Polyglot | — | 12% |

## Agentic & Tool Use

- C4ai Aya Expanse 8b: —
- Command A: 35.9 (#40)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 57.1% |

## Reasoning

- C4ai Aya Expanse 8b: 22.4 (#197)
- Command A: 18.3 (#283)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1326 |
| Kagi LLM Benchmark | — | 28.8% |
| DTBench | — | 61.3% |
| LMCA | — | 10.3% |

## Math

- C4ai Aya Expanse 8b: 33.3 (#203)
- Command A: 36.2 (#171)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Math | 1168 | 1300 |

## Knowledge

- C4ai Aya Expanse 8b: 33.6 (#201)
- Command A: 37.1 (#159)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| Vectara Hallucination Rate | 9.5% | 9.3% |
| LMArena Expert | 1153 | 1295 |

## Multilingual

- C4ai Aya Expanse 8b: 36.1 (#242)
- Command A: 45.3 (#170)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Non-English | 1180 | 1313 |
| LMArena Chinese | 1181 | 1327 |
| LMArena German | 1188 | 1341 |
| LMArena Japanese | 1120 | 1285 |
| LMArena Russian | 1197 | 1314 |
| LMArena French | — | 1351 |
| LMArena Korean | — | 1285 |
| LMArena Spanish | — | 1347 |

## Instruction Following

- C4ai Aya Expanse 8b: 60.1 (#253)
- Command A: 69.1 (#177)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Instruction Following | 1155 | 1309 |

## Long Context

- C4ai Aya Expanse 8b: 36.1 (#236)
- Command A: 40.6 (#151)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Longer Query | 1191 | 1334 |

## Writing & Preference

- C4ai Aya Expanse 8b: 39.0 (#250)
- Command A: 47.6 (#208)

| Benchmark | C4ai Aya Expanse 8b | Command A |
|---|---|---|
| LMArena Text | 1185 | 1331 |
| LMArena Creative Writing | 1168 | 1319 |
| LMArena Multi-Turn | 1160 | 1339 |
| EQ-Bench Creative Writing | — | 1145 |

## FAQ

### Is C4ai Aya Expanse 8b better than Command A?

Command A is the stronger model overall, scoring 36.5 to 34.9 on the Noometry Index.

### Is C4ai Aya Expanse 8b or Command A better for coding?

C4ai Aya Expanse 8b scores higher on coding benchmarks: 33.8 versus 27.2 in the Noometry coding category.

### How many benchmarks do C4ai Aya Expanse 8b and Command A share?

15 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Command A has 24.