# Mercury 2 vs Qwen2.5 Plus 1127

> Mercury 2 and Qwen2.5 Plus 1127 score almost the same on the Noometry Index (38.8 vs 38.1), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/mercury-2-vs-qwen2-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Mercury 2 scores higher in 5 categories and Qwen2.5 Plus 1127 in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Mercury 2 leads 46.8 to 42.1.

## Snapshot

| | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| Provider | Inception | Alibaba (Qwen) |
| Noometry Index | 38.8 | 38.1 |
| Rank | 167 | 179 |
| Context | 128K | — |
| Input $/M | $0.25 | — |
| Output $/M | $0.75 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Mercury 2: 33.2 (#250)
- Qwen2.5 Plus 1127: 37.9 (#171)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1391 | 1314 |
| LMArena WebDev | 1170 | — |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |

## Reasoning

- Mercury 2: 23.0 (#170)
- Qwen2.5 Plus 1127: 24.8 (#139)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1362 | 1299 |
| CritPt | 0.8% | — |

## Math

- Mercury 2: —
- Qwen2.5 Plus 1127: 33.5 (#175)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | — | 1298 |

## Knowledge

- Mercury 2: 35.6 (#170)
- Qwen2.5 Plus 1127: 34.9 (#179)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1358 | 1289 |
| Vectara Hallucination Rate | 12.3% | — |

## Multilingual

- Mercury 2: 46.8 (#153)
- Qwen2.5 Plus 1127: 42.1 (#196)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1331 | 1265 |
| LMArena Chinese | 1416 | 1314 |
| LMArena Russian | 1303 | 1271 |
| LMArena German | — | 1231 |
| LMArena Japanese | — | 1207 |

## Instruction Following

- Mercury 2: 70.4 (#161)
- Qwen2.5 Plus 1127: 67.4 (#194)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1328 | 1275 |

## Long Context

- Mercury 2: 40.4 (#149)
- Qwen2.5 Plus 1127: 39.2 (#180)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1329 | 1292 |

## Writing & Preference

- Mercury 2: 54.0 (#151)
- Qwen2.5 Plus 1127: 49.5 (#186)

| Benchmark | Mercury 2 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1355 | 1299 |
| LMArena Creative Writing | 1289 | 1262 |
| LMArena Multi-Turn | 1358 | 1299 |

## FAQ

### Is Mercury 2 better than Qwen2.5 Plus 1127?

Mercury 2 and Qwen2.5 Plus 1127 score almost the same on the Noometry Index (38.8 vs 38.1), so choose on price, context window or the category you care about most.

### Is Mercury 2 or Qwen2.5 Plus 1127 better for coding?

Qwen2.5 Plus 1127 scores higher on coding benchmarks: 37.9 versus 33.2 in the Noometry coding category.

### How many benchmarks do Mercury 2 and Qwen2.5 Plus 1127 share?

11 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Qwen2.5 Plus 1127 has 14.