# Command A vs Yi-Lightning

> Command A and Yi-Lightning score almost the same on the Noometry Index (36.5 vs 37.1), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/command-a-vs-yi-lightning
- Last updated: 2026-10-11
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Command A scores higher in 5 categories and Yi-Lightning in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Yi-Lightning leads 25.9 to 18.3.
- Command A has downloadable open weights; the other is API-only.

## Snapshot

| | Command A | Yi-Lightning |
|---|---|---|
| Provider | Cohere | 01.AI |
| Noometry Index | 36.5 | 37.1 |
| Rank | 215 | 209 |
| Context | 256K | — |
| Input $/M | $2.50 | — |
| Output $/M | $10 | — |
| Weights | Open | Proprietary |

## Coding

- Command A: 27.2 (#322)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| Aider Polyglot | 12% | 12.9% |
| LMArena Coding | 1330 | 1312 |

## Agentic & Tool Use

- Command A: 35.9 (#40)
- Yi-Lightning: —

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| Berkeley Function Calling Leaderboard | 57.1% | — |

## Reasoning

- Command A: 18.3 (#283)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1326 | 1302 |
| Kagi LLM Benchmark | 28.8% | — |
| DTBench | 61.3% | — |
| LMCA | 10.3% | — |

## Math

- Command A: 36.2 (#171)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Math | 1300 | 1300 |

## Knowledge

- Command A: 37.1 (#159)
- Yi-Lightning: 35.4 (#185)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1295 | 1286 |
| Vectara Hallucination Rate | 9.3% | — |

## Multilingual

- Command A: 45.3 (#170)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1313 | 1269 |
| LMArena Chinese | 1327 | 1320 |
| LMArena French | 1351 | 1305 |
| LMArena German | 1341 | 1267 |
| LMArena Japanese | 1285 | 1228 |
| LMArena Korean | 1285 | 1192 |
| LMArena Russian | 1314 | 1255 |
| LMArena Spanish | 1347 | 1315 |

## Instruction Following

- Command A: 69.1 (#177)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1309 | 1278 |

## Long Context

- Command A: 40.6 (#151)
- Yi-Lightning: 39.4 (#181)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1334 | 1297 |

## Writing & Preference

- Command A: 47.6 (#208)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Command A | Yi-Lightning |
|---|---|---|
| LMArena Text | 1331 | 1302 |
| LMArena Creative Writing | 1319 | 1280 |
| LMArena Multi-Turn | 1339 | 1311 |
| EQ-Bench Creative Writing | 1145 | — |

## FAQ

### Is Command A better than Yi-Lightning?

Command A and Yi-Lightning score almost the same on the Noometry Index (36.5 vs 37.1), so choose on price, context window or the category you care about most.

### Is Command A or Yi-Lightning better for coding?

They score almost the same on coding (27.2 vs 27.4); test both on your own repository before choosing.

### How many benchmarks do Command A and Yi-Lightning share?

18 benchmarks have published results for both models. Command A has 24 scored results on Noometry and Yi-Lightning has 18.