# Mercury 2 vs MiMo-V2.5-Pro

> MiMo-V2.5-Pro is the stronger model overall, scoring 44.8 to 38.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-2-vs-mimo-v2-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. Mercury 2 scores higher in 0 categories and MiMo-V2.5-Pro in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where MiMo-V2.5-Pro leads 47.0 to 33.2.
- The biggest single-benchmark swing is SciCode: 38.7% for Mercury 2 and 50.2% for MiMo-V2.5-Pro.
- Mercury 2 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.43 / $0.87 for MiMo-V2.5-Pro.
- MiMo-V2.5-Pro accepts more context: 1.05M tokens versus 128K.
- MiMo-V2.5-Pro has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| Provider | Inception | Xiaomi |
| Noometry Index | 38.8 | 44.8 |
| Rank | 167 | 70 |
| Context | 128K | 1.05M |
| Input $/M | $0.25 | $0.43 |
| Output $/M | $0.75 | $0.87 |
| Weights | Proprietary | Open |

## Coding

- Mercury 2: 33.2 (#250)
- MiMo-V2.5-Pro: 47.0 (#58)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena WebDev | 1170 | 1477 |
| SciCode | 38.7% | 50.2% |
| LMArena Coding | 1391 | 1502 |
| ALE-Bench | 785.58 | 899.8 |
| WeirdML | 43.2% | — |

## Reasoning

- Mercury 2: 23.0 (#170)
- MiMo-V2.5-Pro: 25.9 (#124)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| CritPt | 0.8% | 4% |
| LMArena Hard Prompts | 1362 | 1487 |
| NYT Connections (extended) | — | 34.4% |
| DTBench | — | 84.5% |
| LMCA | — | 29.5% |

## Math

- Mercury 2: —
- MiMo-V2.5-Pro: 38.6 (#84)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| ProofBench | — | 22% |
| LMArena Math | — | 1480 |

## Knowledge

- Mercury 2: 35.6 (#170)
- MiMo-V2.5-Pro: 41.5 (#100)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Expert | 1358 | 1501 |
| Vectara Hallucination Rate | 12.3% | — |

## Multilingual

- Mercury 2: 46.8 (#153)
- MiMo-V2.5-Pro: 55.3 (#33)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Non-English | 1331 | 1449 |
| LMArena Chinese | 1416 | 1507 |
| LMArena Russian | 1303 | 1450 |
| LMArena French | — | 1489 |
| LMArena German | — | 1455 |
| LMArena Japanese | — | 1418 |
| LMArena Korean | — | 1436 |
| LMArena Spanish | — | 1470 |

## Instruction Following

- Mercury 2: 70.4 (#161)
- MiMo-V2.5-Pro: 77.6 (#21)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Instruction Following | 1328 | 1477 |

## Long Context

- Mercury 2: 40.4 (#149)
- MiMo-V2.5-Pro: 45.4 (#38)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Longer Query | 1329 | 1482 |

## Writing & Preference

- Mercury 2: 54.0 (#151)
- MiMo-V2.5-Pro: 65.5 (#47)

| Benchmark | Mercury 2 | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Text | 1355 | 1465 |
| LMArena Creative Writing | 1289 | 1440 |
| LMArena Multi-Turn | 1358 | 1477 |
| EQ-Bench Creative Writing | — | 1493 |
| EQ-Bench 4 | — | 1208 |

## FAQ

### Is Mercury 2 better than MiMo-V2.5-Pro?

MiMo-V2.5-Pro is the stronger model overall, scoring 44.8 to 38.8 on the Noometry Index.

### Which is cheaper, Mercury 2 or MiMo-V2.5-Pro?

Mercury 2 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; MiMo-V2.5-Pro lists at $0.43 and $0.87.

### Is Mercury 2 or MiMo-V2.5-Pro better for coding?

MiMo-V2.5-Pro scores higher on coding benchmarks: 47.0 versus 33.2 in the Noometry coding category.

### Which has the bigger context window?

MiMo-V2.5-Pro does, with 1.05M tokens against 128K.

### How many benchmarks do Mercury 2 and MiMo-V2.5-Pro share?

15 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and MiMo-V2.5-Pro has 27.