# Mercury 2 vs Mixtral 8x7B

> Mercury 2 is the stronger model overall, scoring 38.8 to 26.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-2-vs-mixtral-8x7b
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Mercury 2 scores higher in 7 categories and Mixtral 8x7B in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Mercury 2 leads 35.6 to 11.0.
- Mercury 2 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.70 / $0.70 for Mixtral 8x7B.
- Mercury 2 accepts more context: 128K tokens versus 32K.
- Mixtral 8x7B has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| Provider | Inception | Mistral AI |
| Noometry Index | 38.8 | 26.8 |
| Rank | 167 | 328 |
| Context | 128K | 32K |
| Input $/M | $0.25 | $0.70 |
| Output $/M | $0.75 | $0.70 |
| Weights | Proprietary | Open |

## Coding

- Mercury 2: 33.2 (#250)
- Mixtral 8x7B: 32.2 (#265)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Coding | 1391 | 1127 |
| LMArena WebDev | 1170 | — |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
| HumanEval+ | — | 39.6% |
| MBPP+ | — | 49.7% |

## Reasoning

- Mercury 2: 23.0 (#170)
- Mixtral 8x7B: 17.4 (#283)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Hard Prompts | 1362 | 1115 |
| CritPt | 0.8% | — |
| DTBench | — | 49.6% |
| Adversarial NLI | — | 55.2% |
| Epoch Capabilities Index | — | 118.38 |
| ForecastBench | — | 56.3 |
| HellaSwag | — | 86.7% |
| PIQA | — | 83.6% |
| WinoGrande | — | 77.2% |

## Math

- Mercury 2: —
- Mixtral 8x7B: 17.2 (#284)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| Omni-MATH | — | 10.5% |
| LMArena Math | — | 1147 |
| MATH Level 5 | — | 10% |
| GSM8K | — | 74.4% |

## Knowledge

- Mercury 2: 35.6 (#170)
- Mixtral 8x7B: 11.0 (#296)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Expert | 1358 | 1088 |
| GPQA Diamond | — | 30.6% |
| MMLU-Pro | — | 33.5% |
| Vectara Hallucination Rate | 12.3% | — |
| GPQA (HELM) | — | 29.6% |
| ARC (AI2) Challenge | — | 87.3% |
| MMLU | — | 70.6% |
| OpenBookQA | — | 85.8% |
| TriviaQA | — | 82.2% |

## Multilingual

- Mercury 2: 46.8 (#153)
- Mixtral 8x7B: 29.8 (#261)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Non-English | 1331 | 1077 |
| LMArena Chinese | 1416 | 1055 |
| LMArena Russian | 1303 | 1090 |
| LMArena French | — | 1165 |
| LMArena German | — | 1114 |
| LMArena Japanese | — | 931 |
| LMArena Korean | — | 968 |
| LMArena Spanish | — | 1110 |

## Instruction Following

- Mercury 2: 70.4 (#161)
- Mixtral 8x7B: 51.2 (#292)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Instruction Following | 1328 | 1110 |
| IFEval | — | 57.5% |

## Long Context

- Mercury 2: 40.4 (#149)
- Mixtral 8x7B: 33.4 (#255)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Longer Query | 1329 | 1103 |

## Writing & Preference

- Mercury 2: 54.0 (#151)
- Mixtral 8x7B: 34.4 (#265)

| Benchmark | Mercury 2 | Mixtral 8x7B |
|---|---|---|
| LMArena Text | 1355 | 1132 |
| LMArena Creative Writing | 1289 | 1109 |
| LMArena Multi-Turn | 1358 | 1115 |
| WildBench | — | 67.3% |

## FAQ

### Is Mercury 2 better than Mixtral 8x7B?

Mercury 2 is the stronger model overall, scoring 38.8 to 26.8 on the Noometry Index.

### Which is cheaper, Mercury 2 or Mixtral 8x7B?

Mercury 2 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Mixtral 8x7B lists at $0.70 and $0.70.

### Is Mercury 2 or Mixtral 8x7B better for coding?

Mercury 2 scores higher on coding benchmarks: 33.2 versus 32.2 in the Noometry coding category.

### Which has the bigger context window?

Mercury 2 does, with 128K tokens against 32K.

### How many benchmarks do Mercury 2 and Mixtral 8x7B share?

11 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Mixtral 8x7B has 38.