# Qwen Plus vs Yi-1.5-34B

> Qwen Plus is the stronger model overall, scoring 36.7 to 30.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/qwen-plus-vs-yi-1-5-34b
- Last updated: 2026-10-10
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. Qwen Plus scores higher in 7 categories and Yi-1.5-34B in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Qwen Plus leads 52.4 to 37.6.
- The biggest single-benchmark swing is MATH Level 5: 65.3% for Qwen Plus and 25.5% for Yi-1.5-34B.
- Yi-1.5-34B has downloadable open weights; the other is API-only.

## Snapshot

| | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| Provider | Alibaba (Qwen) | 01.AI |
| Noometry Index | 36.7 | 30.2 |
| Rank | 204 | 286 |
| Context | 1M | — |
| Input $/M | $0.40 | — |
| Output $/M | $1.20 | — |
| Weights | Proprietary | Open |

## Coding

- Qwen Plus: 38.3 (#163)
- Yi-1.5-34B: 31.9 (#267)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 1328 | 1169 |
| BigCodeBench Instruct | — | 33.9% |
| BigCodeBench Complete | — | 43.8% |

## Reasoning

- Qwen Plus: 27.6 (#101)
- Yi-1.5-34B: 21.5 (#195)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 1317 | 1160 |
| Kagi LLM Benchmark | 63.3% | — |
| DTBench | 81.1% | — |
| LMCA | 24% | — |

## Math

- Qwen Plus: 22.0 (#266)
- Yi-1.5-34B: 25.3 (#248)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 1326 | 1182 |
| MATH Level 5 | 65.3% | 25.5% |
| OTIS Mock AIME 2024-2025 | 17.8% | — |
| FrontierMath (Feb 2025 set) | 1.7% | — |

## Knowledge

- Qwen Plus: 27.4 (#245)
- Yi-1.5-34B: 14.8 (#290)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | 48.1% | 32% |
| LMArena Expert | 1328 | 1144 |

## Multilingual

- Qwen Plus: 45.3 (#170)
- Yi-1.5-34B: 32.5 (#251)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 1310 | 1121 |
| LMArena Chinese | 1347 | 1213 |
| LMArena Japanese | 1251 | 1021 |
| LMArena Russian | 1323 | 1091 |
| LMArena French | — | 1155 |
| LMArena German | — | 1111 |
| LMArena Korean | — | 1005 |
| LMArena Spanish | — | 1120 |

## Instruction Following

- Qwen Plus: 69.0 (#176)
- Yi-1.5-34B: 59.4 (#252)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 1303 | 1139 |

## Long Context

- Qwen Plus: 40.3 (#153)
- Yi-1.5-34B: 34.6 (#243)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | 1325 | 1144 |

## Writing & Preference

- Qwen Plus: 52.4 (#171)
- Yi-1.5-34B: 37.6 (#252)

| Benchmark | Qwen Plus | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 1326 | 1173 |
| LMArena Creative Writing | 1293 | 1135 |
| LMArena Multi-Turn | 1336 | 1153 |

## FAQ

### Is Qwen Plus better than Yi-1.5-34B?

Qwen Plus is the stronger model overall, scoring 36.7 to 30.2 on the Noometry Index.

### Is Qwen Plus or Yi-1.5-34B better for coding?

Qwen Plus scores higher on coding benchmarks: 38.3 versus 31.9 in the Noometry coding category.

### How many benchmarks do Qwen Plus and Yi-1.5-34B share?

15 benchmarks have published results for both models. Qwen Plus has 20 scored results on Noometry and Yi-1.5-34B has 21.