GPT-5.6 Luna
HumanEval ratings
Not rated yet — ratings appear with the next official snapshot once this model has eligible votes.
External benchmarks
Curated third-party results, shown as context with provenance — the HumanEval rating from blind human votes remains the verdict.
General Intelligence
Reasoning
| LiveBench — Reasoning | 85.6 | 2026-09-07 | LiveBench |
| GPQA Diamond | 91.6%88.2% – 95.0% | 2026-07-09 | Epoch AI Benchmarking Hub |
Coding
| LiveBench — Coding | 82.9 | 2026-09-07 | LiveBench |
Mathematics
| LiveBench — Mathematics | 87.2 | 2026-09-07 | LiveBench |
| OTIS Mock AIME 2024–2025 | 98.3%96.0% – 100.6% | 2026-07-09 | Epoch AI Benchmarking Hub |
Agentic
| LiveBench — Agentic Coding | 48.4 | 2026-09-07 | LiveBench |
| Terminal-Bench 4.0 | 17.3%14.4% – 20.1% | 2026-06-26 | Terminal-Bench |
Language
| LiveBench — Language | 72.6 | 2026-09-07 | LiveBench |
Data analytics
| LiveBench — Data Analysis | 78.0 | 2026-09-07 | LiveBench |
Instruction following
| LiveBench — Instruction Following | 60.1 | 2026-09-07 | LiveBench |
Benchmark percentile by metric group
Percentile of this model within the 19 listed LLM models per metric group (100 = best, averaged across the group's external benchmarks), against the roster median. External data only — not the HumanEval rating.
Win rate by opponent
No eligible head-to-head votes yet. Ties count as half a win for each side.
Sample battles
Curated prompts only, with vote tallies — voter identities are never published.
No published sample battles yet — battles appear here once this model has eligible votes on curated prompts.