# Codestral vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 47.9 to 30.6 on the Noometry Index. Codestral costs 3.2× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/codestral-vs-step-5-preview
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Step 5 Preview leads 51.8 to 27.3.
- Codestral is cheaper at $0.30 / $0.90 per million input/output tokens, against $1 / $2.70 for Step 5 Preview.
- Step 5 Preview accepts more context: 1.02M tokens versus 256K.

## Snapshot

| | Codestral | Step 5 Preview |
|---|---|---|
| Provider | Mistral AI | StepFun |
| Noometry Index | 30.6 | 47.9 |
| Rank | 290 | 58 |
| Context | 256K | 1.02M |
| Input $/M | $0.30 | $1 |
| Output $/M | $0.90 | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Codestral: 27.3 (#321)
- Step 5 Preview: 51.8 (#36)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| Aider Polyglot | 11.1% | — |
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
| BigCodeBench Instruct | 41.8% | — |
| LMArena Coding | — | 1480 |
| BigCodeBench Complete | 52.5% | — |
| ALE-Bench | 137.78 | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |

## Reasoning

- Codestral: 19.8 (#251)
- Step 5 Preview: 40.0 (#57)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |
| CritPt | — | 20.9% |
| LMArena Hard Prompts | — | 1465 |

## Math

- Codestral: —
- Step 5 Preview: 46.1 (#72)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| ProofBench | — | 42% |
| LMArena Math | — | 1470 |

## Knowledge

- Codestral: —
- Step 5 Preview: 41.2 (#112)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Expert | — | 1470 |

## Multimodal

- Codestral: —
- Step 5 Preview: 41.0 (#41)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |

## Multilingual

- Codestral: —
- Step 5 Preview: 53.8 (#54)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Non-English | — | 1432 |
| LMArena Chinese | — | 1519 |
| LMArena Russian | — | 1436 |
| LMArena Spanish | — | 1439 |

## Instruction Following

- Codestral: —
- Step 5 Preview: 76.0 (#50)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | — | 1444 |

## Long Context

- Codestral: —
- Step 5 Preview: 44.5 (#64)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | — | 1455 |

## Writing & Preference

- Codestral: —
- Step 5 Preview: 62.8 (#71)

| Benchmark | Codestral | Step 5 Preview |
|---|---|---|
| LMArena Text | — | 1442 |
| LMArena Creative Writing | — | 1410 |
| LMArena Multi-Turn | — | 1447 |

## FAQ

### Is Codestral better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 47.9 to 30.6 on the Noometry Index. Codestral costs 3.2× less per token, which makes it the better buy when Step 5 Preview's lead doesn't matter for your workload.

### Which is cheaper, Codestral or Step 5 Preview?

Codestral is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Step 5 Preview lists at $1 and $2.70.

### Is Codestral or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 51.8 versus 27.3 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 Codestral and Step 5 Preview share?

0 benchmarks have published results for both models. Codestral has 7 scored results on Noometry and Step 5 Preview has 18.