# Mercury 2.5 vs Mistral 7B

> Mistral 7B has enough public results to be ranked (#346); Mercury 2.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/mercury-2-5-vs-mistral-7b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Mercury 2.5 leads 22.4 to 7.6.
- Mercury 2.5 is cheaper at $0.04 / $0.15 per million input/output tokens, against $0.25 / $0.25 for Mistral 7B.
- Mercury 2.5 accepts more context: 260K tokens versus 8K.
- Mistral 7B has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury 2.5 | Mistral 7B |
|---|---|---|
| Provider | Inception | Mistral AI |
| Noometry Index | 30.2 | 22.9 |
| Rank | — | 346 |
| Context | 260K | 8K |
| Input $/M | $0.04 | $0.25 |
| Output $/M | $0.15 | $0.25 |
| Weights | Proprietary | Open |

## Coding

- Mercury 2.5: —
- Mistral 7B: 25.9 (#321)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| BigCodeBench Instruct | — | 19.5% |
| LMArena Coding | — | 1082 |
| BigCodeBench Complete | — | 27.3% |
| ALE-Bench | 301.65 | — |
| HumanEval+ | — | 36% |
| MBPP+ | — | 42.1% |

## Reasoning

- Mercury 2.5: —
- Mistral 7B: 12.6 (#331)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| Chess Puzzles | — | 0% |
| LMArena Hard Prompts | — | 1067 |
| DTBench | — | 42.5% |
| Adversarial NLI | — | 47.1% |
| BIG-Bench Hard | — | 56.1% |
| Epoch Capabilities Index | — | 111.97 |
| HellaSwag | — | 81% |
| PIQA | — | 83% |
| WinoGrande | — | 75.3% |

## Math

- Mercury 2.5: 22.4
- Mistral 7B: 7.6 (#319)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 0.3% |
| ProofBench | 3% | — |
| LMArena Math | — | 1085 |
| MATH Level 5 | — | 3.7% |
| GSM8K | — | 54.4% |

## Knowledge

- Mercury 2.5: —
- Mistral 7B: 7.3 (#306)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| GPQA Diamond | — | 15.2% |
| LMArena Expert | — | 1036 |
| ARC (AI2) Challenge | — | 78.6% |
| BoolQ | — | 87.4% |
| MMLU | — | 62.5% |
| OpenBookQA | — | 79.8% |
| TriviaQA | — | 75.2% |

## Multilingual

- Mercury 2.5: —
- Mistral 7B: 26.0 (#278)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| LMArena Non-English | — | 1012 |
| LMArena Chinese | — | 1009 |
| LMArena French | — | 1036 |
| LMArena German | — | 987 |
| LMArena Japanese | — | 878 |
| LMArena Russian | — | 1018 |
| LMArena Spanish | — | 1026 |

## Instruction Following

- Mercury 2.5: —
- Mistral 7B: 54.5 (#275)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| LMArena Instruction Following | — | 1060 |

## Long Context

- Mercury 2.5: —
- Mistral 7B: 32.2 (#266)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| LMArena Longer Query | — | 1060 |

## Writing & Preference

- Mercury 2.5: —
- Mistral 7B: 30.9 (#281)

| Benchmark | Mercury 2.5 | Mistral 7B |
|---|---|---|
| LMArena Text | — | 1090 |
| LMArena Creative Writing | — | 1068 |
| LMArena Multi-Turn | — | 1062 |

## FAQ

### Is Mercury 2.5 better than Mistral 7B?

Mistral 7B has enough public results to be ranked (#346); Mercury 2.5 does not yet, so treat this comparison as directional.

### Which is cheaper, Mercury 2.5 or Mistral 7B?

Mercury 2.5 is cheaper. It lists at $0.04 per million input tokens and $0.15 per million output tokens; Mistral 7B lists at $0.25 and $0.25.

### Which has the bigger context window?

Mercury 2.5 does, with 260K tokens against 8K.

### How many benchmarks do Mercury 2.5 and Mistral 7B share?

0 benchmarks have published results for both models. Mercury 2.5 has 2 scored results on Noometry and Mistral 7B has 37.