OpenAI
GPT-5.6 Luna benchmark results
8 results on 4 benchmarks from 2 sources.
Also listed as: gpt-5.6-luna-xhigh · gpt-5.6-luna_none · GPT-5.6 Luna (none) · gpt-5.6-luna_low · GPT-5.6 Luna (low) · gpt-5.6-luna_max · GPT-5.6 Luna (max)
All benchmark results
| Benchmarks | Score | Rank | Setting | Source type | Date |
|---|---|---|---|---|---|
| LMArena Text | 1452 | 74 | Overall, style control on; 40917 votes; 95% CI 1448–1457“gpt-5.6-luna-xhigh” | Official leaderboard | Oct 8, 2026 |
| LMArena Vision | 1260 | 44 | Overall, style control on; 10446 votes; 95% CI 1252–1267“gpt-5.6-luna-xhigh” | Official leaderboard | Oct 2, 2026 |
| GPQA Diamond | 91.6% | 28 | Epoch AI run, accuracy; effort: max | Independent run | Jul 9, 2026 |
| GPQA Diamond | 82.3% | 104 | Epoch AI run, accuracy; effort: low | Independent run | Aug 7, 2026 |
| GPQA Diamond | 63.6% | 180 | Epoch AI run, accuracy; effort: none | Independent run | Aug 7, 2026 |
| AIME (OTIS Mock AIME 2024–2025) | 98.3% | 25 | Epoch AI run, OTIS Mock AIME 2024–2025; effort: max | Independent run | Jul 9, 2026 |
| AIME (OTIS Mock AIME 2024–2025) | 66.7% | 138 | Epoch AI run, OTIS Mock AIME 2024–2025; effort: low | Independent run | Aug 7, 2026 |
| AIME (OTIS Mock AIME 2024–2025) | 40.0% | 181 | Epoch AI run, OTIS Mock AIME 2024–2025; effort: none | Independent run | Aug 7, 2026 |
FAQ
Where do these GPT-5.6 Luna scores come from?
From Epoch AI Benchmarking Hub and LMArena leaderboard dataset. Each row links to the original leaderboard, dataset or report, and vendor-reported numbers are labelled.