# Qwen1.5-14B vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 36.5 to 32.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/qwen1-5-14b-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Qwen1.5-14B scores higher in 1 category and Yi-Lightning in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Yi-Lightning leads 50.4 to 33.7.
- Qwen1.5-14B has downloadable open weights; the other is API-only.

## Snapshot

| | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| Provider | Alibaba (Qwen) | 01.AI |
| Noometry Index | 32.1 | 36.5 |
| Rank | 250 | 206 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Qwen1.5-14B: 32.5 (#259)
- Yi-Lightning: 27.0 (#315)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1138 | 1313 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- Qwen1.5-14B: 20.5 (#217)
- Yi-Lightning: 24.9 (#137)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1113 | 1302 |

## Math

- Qwen1.5-14B: 29.9 (#214)
- Yi-Lightning: 33.5 (#173)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Math | 1125 | 1300 |

## Knowledge

- Qwen1.5-14B: 29.3 (#230)
- Yi-Lightning: 34.8 (#182)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1094 | 1286 |
| MMLU | 68.6% | — |

## Multilingual

- Qwen1.5-14B: 30.8 (#257)
- Yi-Lightning: 42.4 (#191)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1095 | 1269 |
| LMArena Chinese | 1147 | 1320 |
| LMArena French | 1115 | 1304 |
| LMArena German | 1043 | 1267 |
| LMArena Japanese | 1019 | 1228 |
| LMArena Russian | 1046 | 1255 |
| LMArena Spanish | 1085 | 1315 |
| LMArena Korean | — | 1192 |

## Instruction Following

- Qwen1.5-14B: 57.1 (#266)
- Yi-Lightning: 67.6 (#191)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1102 | 1278 |

## Long Context

- Qwen1.5-14B: 33.7 (#252)
- Yi-Lightning: 39.4 (#176)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1113 | 1297 |

## Writing & Preference

- Qwen1.5-14B: 33.7 (#270)
- Yi-Lightning: 50.4 (#178)

| Benchmark | Qwen1.5-14B | Yi-Lightning |
|---|---|---|
| LMArena Text | 1128 | 1302 |
| LMArena Creative Writing | 1091 | 1280 |
| LMArena Multi-Turn | 1110 | 1311 |

## FAQ

### Is Qwen1.5-14B better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 36.5 to 32.1 on the Noometry Index.

### Is Qwen1.5-14B or Yi-Lightning better for coding?

Qwen1.5-14B scores higher on coding benchmarks: 32.5 versus 27.0 in the Noometry coding category.

### How many benchmarks do Qwen1.5-14B and Yi-Lightning share?

16 benchmarks have published results for both models. Qwen1.5-14B has 17 scored results on Noometry and Yi-Lightning has 18.