# o3-mini vs Yi-Lightning

> o3-mini and Yi-Lightning score almost the same on the Noometry Index (36.7 vs 37.1), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/o3-mini-vs-yi-lightning
- Last updated: 2026-10-11
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. o3-mini scores higher in 5 categories and Yi-Lightning in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where o3-mini leads 40.8 to 27.4.
- The biggest single-benchmark swing is Aider Polyglot: 60.4% for o3-mini and 12.9% for Yi-Lightning.

## Snapshot

| | o3-mini | Yi-Lightning |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 36.7 | 37.1 |
| Rank | 212 | 209 |
| Context | 200K | — |
| Input $/M | $1.10 | — |
| Output $/M | $4.40 | — |
| Weights | Proprietary | Proprietary |

## Coding

- o3-mini: 40.8 (#132)
- Yi-Lightning: 27.4 (#320)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| Aider Polyglot | 60.4% | 12.9% |
| LMArena Coding | 1378 | 1312 |
| SciCode | 39.8% | — |
| GSO | 1.3% | — |
| WeirdML | 43.7% | — |
| LiveBench Coding | 82.7% | — |
| CadEval | 54% | — |

## Agentic & Tool Use

- o3-mini: 29.6 (#84)
- Yi-Lightning: —

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| Cybench | 22.5% | — |

## Reasoning

- o3-mini: 16.3 (#305)
- Yi-Lightning: 25.9 (#139)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1366 | 1302 |
| ARC-AGI-2 | 3% | — |
| SimpleBench | 22.8% | — |
| ARC-AGI-1 | 34.5% | — |
| CritPt | 0.3% | — |
| Chess Puzzles | 17% | — |
| LiveBench Reasoning | 89.6% | — |
| Mystery Game Puzzles | 7% | — |
| DTBench | 68.8% | — |
| LiveBench Data Analysis | 70.6% | — |
| LMCA | 19% | — |
| Epoch Capabilities Index | 140.34 | — |
| ForecastBench | 59.6 | — |
| LiveBench | 75.9% | — |

## Math

- o3-mini: 28.1 (#244)
- Yi-Lightning: 36.2 (#172)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Math | 1396 | 1300 |
| FrontierMath (Tiers 1-3) | 18.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 76.9% | — |
| LiveBench Math | 77.3% | — |
| MATH Level 5 | 96.5% | — |
| FrontierMath (Feb 2025 set) | 12.4% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- o3-mini: 38.3 (#146)
- Yi-Lightning: 35.4 (#185)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1364 | 1286 |
| GPQA Diamond | 77% | — |
| SimpleQA Verified | 15.3% | — |
| Confabulations | 17.9% | — |

## Multilingual

- o3-mini: 45.7 (#164)
- Yi-Lightning: 42.2 (#196)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1319 | 1269 |
| LMArena Chinese | 1379 | 1320 |
| LMArena French | 1334 | 1305 |
| LMArena German | 1303 | 1267 |
| LMArena Japanese | 1286 | 1228 |
| LMArena Korean | 1314 | 1192 |
| LMArena Russian | 1304 | 1255 |
| LMArena Spanish | 1321 | 1315 |

## Instruction Following

- o3-mini: 75.1 (#72)
- Yi-Lightning: 67.4 (#196)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1337 | 1278 |
| LiveBench Instruction Following | 84.4% | — |

## Long Context

- o3-mini: 33.8 (#256)
- Yi-Lightning: 39.4 (#181)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1343 | 1297 |
| Fiction.LiveBench | 50% | — |

## Writing & Preference

- o3-mini: 50.3 (#182)
- Yi-Lightning: 50.2 (#184)

| Benchmark | o3-mini | Yi-Lightning |
|---|---|---|
| LMArena Text | 1337 | 1302 |
| LMArena Creative Writing | 1286 | 1280 |
| LMArena Multi-Turn | 1320 | 1311 |
| Short-Story Creative Writing | 61.7% | — |
| LiveBench Language | 50.7% | — |

## FAQ

### Is o3-mini better than Yi-Lightning?

o3-mini and Yi-Lightning score almost the same on the Noometry Index (36.7 vs 37.1), so choose on price, context window or the category you care about most.

### Is o3-mini or Yi-Lightning better for coding?

o3-mini scores higher on coding benchmarks: 40.8 versus 27.4 in the Noometry coding category.

### How many benchmarks do o3-mini and Yi-Lightning share?

18 benchmarks have published results for both models. o3-mini has 51 scored results on Noometry and Yi-Lightning has 18.