Model comparison
o1 vs Yi-Lightning
o1 is the stronger model overall, scoring 40.9 to 37.1 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. o1 scores higher in 7 categories and Yi-Lightning in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where o1 leads 46.1 to 27.4.
- The biggest single-benchmark swing is Aider Polyglot: 61.7% for o1 and 12.9% for Yi-Lightning.
Side by side
| o1 | Yi-Lightning | |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 40.9 | 37.1 |
| Released | 2024-09-12 | 2024-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $15 | — |
| Output $ / M tokens | $60 | — |
| Results tracked | 52 | 18 |
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Category by category
Coding o1 leads
o1: 46.1 (#70), Yi-Lightning: 27.4 (#320)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| Aider Polyglot | 61.7% | 12.9% |
| LMArena Coding | 1367 | 1312 |
| WeirdML | 47.6% | — |
| LiveBench Coding | 69.7% | — |
| CadEval | 56% | — |
| HumanEval+ | 89% | — |
| MBPP+ | 80.2% | — |
Agentic & Tool Use Not comparable
o1: 24.6 (#117), Yi-Lightning: —
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| Cybench | 10% | — |
| METR Time Horizons | 51.1% | — |
Reasoning o1 leads
o1: 27.9 (#111), Yi-Lightning: 25.9 (#139)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1371 | 1302 |
| SimpleBench | 41.7% | — |
| ARC-AGI-1 | 30.7% | — |
| Chess Puzzles | 15% | — |
| EnigmaEval | 5.7% | — |
| LiveBench Reasoning | 91.6% | — |
| DTBench | 74.7% | — |
| LiveBench Data Analysis | 65.5% | — |
| LMCA | 22.3% | — |
| Epoch Capabilities Index | 141.91 | — |
| LiveBench | 75.7% | — |
Math Too close to call
o1: 36.1 (#175), Yi-Lightning: 36.2 (#172)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Math | 1388 | 1300 |
| FrontierMath (Tiers 1-3) | 14.7% | — |
| OTIS Mock AIME 2024-2025 | 73.3% | — |
| LiveBench Math | 80.3% | — |
| MATH Level 5 | 94.7% | — |
| FrontierMath (Feb 2025 set) | 9.3% | — |
Knowledge o1 leads
o1: 41.5 (#110), Yi-Lightning: 35.4 (#185)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1361 | 1286 |
| GPQA Diamond | 76.8% | — |
| Humanity's Last Exam | 8% | — |
| SimpleQA Verified | 41.1% | — |
| Confabulations | 11.7% | — |
Multimodal Not comparable
o1: 34.2 (#93), Yi-Lightning: —
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1168 | — |
| GeoBench | 80% | — |
| VPCT | 37% | — |
| SpatialViz-Bench | 41.4% | — |
Multilingual o1 leads
o1: 48.6 (#142), Yi-Lightning: 42.2 (#196)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1358 | 1269 |
| LMArena Chinese | 1394 | 1320 |
| LMArena French | 1344 | 1305 |
| LMArena German | 1337 | 1267 |
| LMArena Japanese | 1346 | 1228 |
| LMArena Korean | 1396 | 1192 |
| LMArena Russian | 1356 | 1255 |
| LMArena Spanish | 1345 | 1315 |
Instruction Following o1 leads
o1: 74.8 (#86), Yi-Lightning: 67.4 (#196)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1367 | 1278 |
| LiveBench Instruction Following | 81.5% | — |
Long Context o1 leads
o1: 50.3 (#9), Yi-Lightning: 39.4 (#181)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1378 | 1297 |
| Fiction.LiveBench | 83.3% | — |
Writing & Preference o1 leads
o1: 55.6 (#144), Yi-Lightning: 50.2 (#184)
| Benchmark | o1 | Yi-Lightning |
|---|---|---|
| LMArena Text | 1366 | 1302 |
| LMArena Creative Writing | 1348 | 1280 |
| LMArena Multi-Turn | 1369 | 1311 |
| Short-Story Creative Writing | 70.2% | — |
| LiveBench Language | 65.4% | — |
Frequently asked questions
Is o1 better than Yi-Lightning?
o1 is the stronger model overall, scoring 40.9 to 37.1 on the Noometry Index.
Is o1 or Yi-Lightning better for coding?
o1 scores higher on coding benchmarks: 46.1 versus 27.4 in the Noometry coding category.
How many benchmarks do o1 and Yi-Lightning share?
18 benchmarks have published results for both models. o1 has 52 scored results on Noometry and Yi-Lightning has 18.