# Command A vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 35.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/command-a-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Step 5 Preview leads 50.6 to 26.8.
- Step 5 Preview is cheaper at $1 / $2.70 per million input/output tokens, against $2.50 / $10 for Command A.
- Step 5 Preview accepts more context: 1.02M tokens versus 256K.
- Command A has downloadable open weights; the other is API-only.

## Snapshot

| | Command A | Step 5 Preview |
|---|---|---|
| Provider | Cohere | StepFun |
| Noometry Index | 35.9 | 43.8 |
| Rank | 212 | 78 |
| Context | 256K | 1.02M |
| Input $/M | $2.50 | $1 |
| Output $/M | $10 | $2.70 |
| Weights | Open | Proprietary |

## Coding

- Command A: 26.8 (#317)
- Step 5 Preview: 50.6 (#40)

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| Aider Polyglot | 12% | — |
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1331 | — |

## Agentic & Tool Use

- Command A: 35.7 (#36)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| Berkeley Function Calling Leaderboard | 57.1% | — |

## Reasoning

- Command A: 17.7 (#276)
- Step 5 Preview: 38.0 (#58)

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| Kagi LLM Benchmark | 28.8% | — |
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1326 | — |
| DTBench | 61.3% | — |
| LMCA | 10.3% | — |

## Math

- Command A: 33.5 (#172)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| LMArena Math | 1300 | — |

## Knowledge

- Command A: 36.5 (#157)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| Vectara Hallucination Rate | 9.3% | — |
| LMArena Expert | 1295 | — |

## Multilingual

- Command A: 45.5 (#166)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1313 | — |
| LMArena Chinese | 1327 | — |
| LMArena French | 1352 | — |
| LMArena German | 1341 | — |
| LMArena Japanese | 1283 | — |
| LMArena Korean | 1285 | — |
| LMArena Russian | 1314 | — |
| LMArena Spanish | 1346 | — |

## Instruction Following

- Command A: 69.3 (#172)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1309 | — |

## Long Context

- Command A: 40.6 (#147)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1334 | — |

## Writing & Preference

- Command A: 47.8 (#204)
- Step 5 Preview: —

| Benchmark | Command A | Step 5 Preview |
|---|---|---|
| LMArena Text | 1331 | — |
| LMArena Creative Writing | 1319 | — |
| EQ-Bench Creative Writing | 1145 | — |
| LMArena Multi-Turn | 1338 | — |

## FAQ

### Is Command A better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 35.9 on the Noometry Index.

### Which is cheaper, Command A or Step 5 Preview?

Step 5 Preview is cheaper. It lists at $1 per million input tokens and $2.70 per million output tokens; Command A lists at $2.50 and $10.

### Is Command A or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 26.8 in the Noometry coding category.

### Which has the bigger context window?

Step 5 Preview does, with 1.02M tokens against 256K.

### How many benchmarks do Command A and Step 5 Preview share?

0 benchmarks have published results for both models. Command A has 24 scored results on Noometry and Step 5 Preview has 3.