Model comparison
GPT-6 Luna vs Yi-Lightning
GPT-6 Luna is the stronger model overall, scoring 45.1 to 36.5 on the Noometry Index.
Last verified . 13 shared benchmarks.
Summary
- They share 13 benchmarks with published results for both. GPT-6 Luna scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where GPT-6 Luna leads 54.7 to 27.0.
Side by side
| GPT-6 Luna | Yi-Lightning | |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 45.1 | 36.5 |
| Released | 2026-09-22 | 2024-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 18 | 18 |
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Category by category
Coding GPT-6 Luna leads
GPT-6 Luna: 54.7 (#24), Yi-Lightning: 27.0 (#315)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1448 | 1313 |
| DeepSWE | 66.6% | — |
| FrontierCode | 42.4% | — |
| Aider Polyglot | — | 12.9% |
| LMArena WebDev | 1583 | — |
Reasoning GPT-6 Luna leads
GPT-6 Luna: 31.7 (#68), Yi-Lightning: 24.9 (#137)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1415 | 1302 |
| NYT Connections (extended) | 68.7% | — |
Math GPT-6 Luna leads
GPT-6 Luna: 35.6 (#140), Yi-Lightning: 33.5 (#173)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Math | 1396 | 1300 |
Knowledge GPT-6 Luna leads
GPT-6 Luna: 40.1 (#110), Yi-Lightning: 34.8 (#182)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1458 | 1286 |
Multimodal Not comparable
GPT-6 Luna: 42.0 (#27), Yi-Lightning: —
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| Furniture Assembly | 44.2% | — |
Multilingual GPT-6 Luna leads
GPT-6 Luna: 51.0 (#111), Yi-Lightning: 42.4 (#191)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1390 | 1269 |
| LMArena Chinese | 1425 | 1320 |
| LMArena Russian | 1392 | 1255 |
| LMArena Spanish | 1416 | 1315 |
| LMArena French | — | 1304 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
Instruction Following GPT-6 Luna leads
GPT-6 Luna: 74.7 (#85), Yi-Lightning: 67.6 (#191)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1414 | 1278 |
Long Context GPT-6 Luna leads
GPT-6 Luna: 43.3 (#95), Yi-Lightning: 39.4 (#176)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1417 | 1297 |
Writing & Preference GPT-6 Luna leads
GPT-6 Luna: 58.4 (#115), Yi-Lightning: 50.4 (#178)
| Benchmark | GPT-6 Luna | Yi-Lightning |
|---|---|---|
| LMArena Text | 1392 | 1302 |
| LMArena Creative Writing | 1357 | 1280 |
| LMArena Multi-Turn | 1400 | 1311 |
Frequently asked questions
Is GPT-6 Luna better than Yi-Lightning?
GPT-6 Luna is the stronger model overall, scoring 45.1 to 36.5 on the Noometry Index.
Is GPT-6 Luna or Yi-Lightning better for coding?
GPT-6 Luna scores higher on coding benchmarks: 54.7 versus 27.0 in the Noometry coding category.
How many benchmarks do GPT-6 Luna and Yi-Lightning share?
13 benchmarks have published results for both models. GPT-6 Luna has 18 scored results on Noometry and Yi-Lightning has 18.