# Qwen1.5-7B vs Qwen2.5 Plus 1127

> Qwen2.5 Plus 1127 is the stronger model overall, scoring 38.8 to 31.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/qwen1-5-7b-vs-qwen2-5-plus
- Last updated: 2026-10-12
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Qwen1.5-7B scores higher in 0 categories and Qwen2.5 Plus 1127 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Qwen2.5 Plus 1127 leads 49.4 to 29.6.
- Qwen1.5-7B has downloadable open weights; the other is API-only.

## Snapshot

| | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 31.4 | 38.8 |
| Rank | 273 | 181 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Qwen1.5-7B: 32.2 (#276)
- Qwen2.5 Plus 1127: 38.5 (#175)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1107 | 1314 |

## Reasoning

- Qwen1.5-7B: 20.4 (#240)
- Qwen2.5 Plus 1127: 25.9 (#141)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1065 | 1299 |

## Math

- Qwen1.5-7B: 31.4 (#224)
- Qwen2.5 Plus 1127: 36.1 (#174)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | 1080 | 1298 |

## Knowledge

- Qwen1.5-7B: 28.7 (#243)
- Qwen2.5 Plus 1127: 35.5 (#183)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1055 | 1289 |
| MMLU | 62.6% | — |

## Multilingual

- Qwen1.5-7B: 28.5 (#271)
- Qwen2.5 Plus 1127: 41.9 (#201)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1058 | 1265 |
| LMArena Chinese | 1141 | 1314 |
| LMArena Russian | 1006 | 1271 |
| LMArena German | — | 1231 |
| LMArena Japanese | — | 1207 |

## Instruction Following

- Qwen1.5-7B: 54.1 (#281)
- Qwen2.5 Plus 1127: 67.2 (#199)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1058 | 1275 |

## Long Context

- Qwen1.5-7B: 33.1 (#266)
- Qwen2.5 Plus 1127: 39.2 (#184)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1090 | 1292 |

## Writing & Preference

- Qwen1.5-7B: 29.6 (#293)
- Qwen2.5 Plus 1127: 49.4 (#192)

| Benchmark | Qwen1.5-7B | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1083 | 1299 |
| LMArena Creative Writing | 1035 | 1262 |
| LMArena Multi-Turn | 1062 | 1299 |

## FAQ

### Is Qwen1.5-7B better than Qwen2.5 Plus 1127?

Qwen2.5 Plus 1127 is the stronger model overall, scoring 38.8 to 31.4 on the Noometry Index.

### Is Qwen1.5-7B or Qwen2.5 Plus 1127 better for coding?

Qwen2.5 Plus 1127 scores higher on coding benchmarks: 38.5 versus 32.2 in the Noometry coding category.

### How many benchmarks do Qwen1.5-7B and Qwen2.5 Plus 1127 share?

12 benchmarks have published results for both models. Qwen1.5-7B has 13 scored results on Noometry and Qwen2.5 Plus 1127 has 14.