Model comparison
GPT-5.4 Pro vs Yi-Lightning
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 37.1 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where GPT-5.4 Pro leads 70.7 to 25.9.
Side by side
| GPT-5.4 Pro | Yi-Lightning | |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 58.9 | 37.1 |
| Released | 2026-03-05 | 2024-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $180 | — |
| Results tracked | 16 | 18 |
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Category by category
Coding GPT-5.4 Pro leads
GPT-5.4 Pro: 43.2 (#90), Yi-Lightning: 27.4 (#320)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| Aider Polyglot | — | 12.9% |
| WeirdML | 57.4% | — |
| LMArena Coding | — | 1312 |
Reasoning GPT-5.4 Pro leads
GPT-5.4 Pro: 70.7 (#13), Yi-Lightning: 25.9 (#139)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| CritPt | 30% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| LMArena Hard Prompts | — | 1302 |
| Epoch Capabilities Index | 158.93 | — |
Math GPT-5.4 Pro leads
GPT-5.4 Pro: 72.4 (#22), Yi-Lightning: 36.2 (#172)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| LMArena Math | — | 1300 |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |
Knowledge GPT-5.4 Pro leads
GPT-5.4 Pro: 68.3 (#7), Yi-Lightning: 35.4 (#185)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| GPQA Diamond | 94.6% | — |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
| LMArena Expert | — | 1286 |
Multilingual Not comparable
GPT-5.4 Pro: —, Yi-Lightning: 42.2 (#196)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| LMArena Non-English | — | 1269 |
| LMArena Chinese | — | 1320 |
| LMArena French | — | 1305 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
| LMArena Russian | — | 1255 |
| LMArena Spanish | — | 1315 |
Instruction Following Not comparable
GPT-5.4 Pro: —, Yi-Lightning: 67.4 (#196)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | — | 1278 |
Long Context Not comparable
GPT-5.4 Pro: —, Yi-Lightning: 39.4 (#181)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | — | 1297 |
Writing & Preference Not comparable
GPT-5.4 Pro: —, Yi-Lightning: 50.2 (#184)
| Benchmark | GPT-5.4 Pro | Yi-Lightning |
|---|---|---|
| LMArena Text | — | 1302 |
| LMArena Creative Writing | — | 1280 |
| LMArena Multi-Turn | — | 1311 |
Frequently asked questions
Is GPT-5.4 Pro better than Yi-Lightning?
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 37.1 on the Noometry Index.
Is GPT-5.4 Pro or Yi-Lightning better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 43.2 versus 27.4 in the Noometry coding category.
How many benchmarks do GPT-5.4 Pro and Yi-Lightning share?
0 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Yi-Lightning has 18.