# GPT-5.4 nano vs Yi-Lightning

> GPT-5.4 nano is the stronger model overall, scoring 41.9 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-4-nano-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. GPT-5.4 nano scores higher in 7 categories and Yi-Lightning in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where GPT-5.4 nano leads 43.1 to 27.0.

## Snapshot

| | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 41.9 | 36.5 |
| Rank | 111 | 206 |
| Context | 400K | — |
| Input $/M | $0.20 | — |
| Output $/M | $1.25 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.4 nano: 43.1 (#82)
- Yi-Lightning: 27.0 (#315)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1404 | 1313 |
| Aider Polyglot | — | 12.9% |
| SciCode | 46.9% | — |
| WeirdML | 49.2% | — |
| ALE-Bench | 1,005 | — |

## Reasoning

- GPT-5.4 nano: 23.8 (#159)
- Yi-Lightning: 24.9 (#137)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1380 | 1302 |
| ARC-AGI-2 | 5.7% | — |
| Kagi LLM Benchmark | 39.7% | — |
| ARC-AGI-1 | 51.5% | — |
| CritPt | 9.3% | — |
| Chess Puzzles | 30% | — |
| Mystery Game Puzzles | 9% | — |
| DTBench | 80.3% | — |
| LMCA | 36.9% | — |
| Epoch Capabilities Index | 145.78 | — |
| ForecastBench | 57.3 | — |

## Math

- GPT-5.4 nano: 40.7 (#76)
- Yi-Lightning: 33.5 (#173)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Math | 1406 | 1300 |
| FrontierMath (Tiers 1-3) | 44.9% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 87.8% | — |
| ProofBench | 5% | — |
| FrontierMath (Feb 2025 set) | 25.9% | — |
| FrontierMath Tier 4 (v1) | 6.3% | — |

## Knowledge

- GPT-5.4 nano: 41.8 (#94)
- Yi-Lightning: 34.8 (#182)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1397 | 1286 |
| GPQA Diamond | 78.5% | — |
| SimpleQA Verified | 11.7% | — |
| Vectara Hallucination Rate | 3.1% | — |

## Multimodal

- GPT-5.4 nano: 36.0 (#73)
- Yi-Lightning: —

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1196 | — |

## Multilingual

- GPT-5.4 nano: 48.8 (#136)
- Yi-Lightning: 42.4 (#191)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1359 | 1269 |
| LMArena Chinese | 1391 | 1320 |
| LMArena French | 1396 | 1304 |
| LMArena German | 1368 | 1267 |
| LMArena Japanese | 1342 | 1228 |
| LMArena Korean | 1321 | 1192 |
| LMArena Russian | 1363 | 1255 |
| LMArena Spanish | 1368 | 1315 |

## Instruction Following

- GPT-5.4 nano: 72.1 (#139)
- Yi-Lightning: 67.6 (#191)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1362 | 1278 |

## Long Context

- GPT-5.4 nano: 41.6 (#131)
- Yi-Lightning: 39.4 (#176)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1365 | 1297 |

## Writing & Preference

- GPT-5.4 nano: 55.9 (#137)
- Yi-Lightning: 50.4 (#178)

| Benchmark | GPT-5.4 nano | Yi-Lightning |
|---|---|---|
| LMArena Text | 1372 | 1302 |
| LMArena Creative Writing | 1313 | 1280 |
| LMArena Multi-Turn | 1382 | 1311 |

## FAQ

### Is GPT-5.4 nano better than Yi-Lightning?

GPT-5.4 nano is the stronger model overall, scoring 41.9 to 36.5 on the Noometry Index.

### Is GPT-5.4 nano or Yi-Lightning better for coding?

GPT-5.4 nano scores higher on coding benchmarks: 43.1 versus 27.0 in the Noometry coding category.

### How many benchmarks do GPT-5.4 nano and Yi-Lightning share?

17 benchmarks have published results for both models. GPT-5.4 nano has 40 scored results on Noometry and Yi-Lightning has 18.