# Codestral vs Mercury 2.5

> Codestral has enough public results to be ranked (#287); Mercury 2.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/codestral-vs-mercury-2-5
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both.
- Mercury 2.5 is cheaper at $0.04 / $0.15 per million input/output tokens, against $0.30 / $0.90 for Codestral.
- Mercury 2.5 accepts more context: 260K tokens versus 256K.
- Codestral has downloadable open weights; the other is API-only.

## Snapshot

| | Codestral | Mercury 2.5 |
|---|---|---|
| Provider | Mistral AI | Inception |
| Noometry Index | 30.1 | 30.2 |
| Rank | 287 | — |
| Context | 256K | 260K |
| Input $/M | $0.30 | $0.04 |
| Output $/M | $0.90 | $0.15 |
| Weights | Open | Proprietary |

## Coding

- Codestral: 26.9 (#316)
- Mercury 2.5: —

| Benchmark | Codestral | Mercury 2.5 |
|---|---|---|
| ALE-Bench | 137.78 | 301.65 |
| Aider Polyglot | 11.1% | — |
| BigCodeBench Instruct | 41.8% | — |
| BigCodeBench Complete | 52.5% | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |

## Reasoning

- Codestral: 19.1 (#244)
- Mercury 2.5: —

| Benchmark | Codestral | Mercury 2.5 |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |

## Math

- Codestral: —
- Mercury 2.5: 22.4

| Benchmark | Codestral | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |

## FAQ

### Is Codestral better than Mercury 2.5?

Codestral has enough public results to be ranked (#287); Mercury 2.5 does not yet, so treat this comparison as directional.

### Which is cheaper, Codestral or Mercury 2.5?

Mercury 2.5 is cheaper. It lists at $0.04 per million input tokens and $0.15 per million output tokens; Codestral lists at $0.30 and $0.90.

### Which has the bigger context window?

Mercury 2.5 does, with 260K tokens against 256K.

### How many benchmarks do Codestral and Mercury 2.5 share?

1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and Mercury 2.5 has 2.