# GPT-4o mini vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 37.1 to 25.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4o-mini-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. GPT-4o mini scores higher in 0 categories and Yi-Lightning in 8 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where Yi-Lightning leads 36.2 to 10.4.
- The biggest single-benchmark swing is Aider Polyglot: 3.6% for GPT-4o mini and 12.9% for Yi-Lightning.

## Snapshot

| | GPT-4o mini | Yi-Lightning |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 25.5 | 37.1 |
| Rank | 343 | 209 |
| Context | 128K | — |
| Input $/M | $0.15 | — |
| Output $/M | $0.60 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-4o mini: 22.0 (#335)
- Yi-Lightning: 27.4 (#320)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| Aider Polyglot | 3.6% | 12.9% |
| LMArena Coding | 1290 | 1312 |
| WeirdML | 11.8% | — |
| BigCodeBench Instruct | 46.1% | — |
| LiveBench Coding | 43.1% | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 83.5% | — |
| MBPP+ | 72.2% | — |

## Agentic & Tool Use

- GPT-4o mini: 27.5 (#101)
- Yi-Lightning: —

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| BALROG | 17.4% | — |

## Reasoning

- GPT-4o mini: 8.7 (#347)
- Yi-Lightning: 25.9 (#139)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1267 | 1302 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 10.7% | — |
| Kagi LLM Benchmark | 28.8% | — |
| Chess Puzzles | 0% | — |
| LiveBench Reasoning | 32.8% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 54.4% | — |
| LiveBench Data Analysis | 50% | — |
| LMCA | 10.4% | — |
| Epoch Capabilities Index | 126.56 | — |
| LiveBench | 41.3% | — |
| PIQA | 88.7% | — |

## Math

- GPT-4o mini: 10.4 (#314)
- Yi-Lightning: 36.2 (#172)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Math | 1267 | 1300 |
| FrontierMath (Tiers 1-3) | 0.7% | — |
| OTIS Mock AIME 2024-2025 | 6.9% | — |
| Omni-MATH | 28% | — |
| LiveBench Math | 36.3% | — |
| MATH Level 5 | 52.6% | — |
| GSM8K | 91.3% | — |

## Knowledge

- GPT-4o mini: 17.7 (#284)
- Yi-Lightning: 35.4 (#185)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1235 | 1286 |
| GPQA Diamond | 37.7% | — |
| SimpleQA Verified | 8.3% | — |
| MMLU-Pro | 60.3% | — |
| Confabulations | 37.2% | — |
| GPQA (HELM) | 36.8% | — |
| BoolQ | 88.7% | — |
| MMLU | 81.8% | — |

## Multimodal

- GPT-4o mini: 25.9 (#122)
- Yi-Lightning: —

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1066 | — |
| Video-MME | 64.8% | — |
| GeoBench | 64% | — |
| VPCT | 34% | — |

## Multilingual

- GPT-4o mini: 42.0 (#199)
- Yi-Lightning: 42.2 (#196)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1266 | 1269 |
| LMArena Chinese | 1265 | 1320 |
| LMArena French | 1297 | 1305 |
| LMArena German | 1272 | 1267 |
| LMArena Japanese | 1216 | 1228 |
| LMArena Korean | 1195 | 1192 |
| LMArena Russian | 1275 | 1255 |
| LMArena Spanish | 1276 | 1315 |

## Instruction Following

- GPT-4o mini: 61.9 (#239)
- Yi-Lightning: 67.4 (#196)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1258 | 1278 |
| LiveBench Instruction Following | 56.8% | — |
| IFEval | 78.2% | — |

## Long Context

- GPT-4o mini: 39.1 (#186)
- Yi-Lightning: 39.4 (#181)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1289 | 1297 |

## Writing & Preference

- GPT-4o mini: 39.5 (#248)
- Yi-Lightning: 50.2 (#184)

| Benchmark | GPT-4o mini | Yi-Lightning |
|---|---|---|
| LMArena Text | 1286 | 1302 |
| LMArena Creative Writing | 1268 | 1280 |
| LMArena Multi-Turn | 1285 | 1311 |
| Short-Story Creative Writing | 67.2% | — |
| EQ-Bench Creative Writing | 873 | — |
| WildBench | 79.1% | — |
| LiveBench Language | 28.6% | — |

## FAQ

### Is GPT-4o mini better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 37.1 to 25.5 on the Noometry Index.

### Is GPT-4o mini or Yi-Lightning better for coding?

Yi-Lightning scores higher on coding benchmarks: 27.4 versus 22.0 in the Noometry coding category.

### How many benchmarks do GPT-4o mini and Yi-Lightning share?

18 benchmarks have published results for both models. GPT-4o mini has 60 scored results on Noometry and Yi-Lightning has 18.