GPT-6 Luna
Fast, cheap tier of GPT-6. Cheapest LLM on GoBench (about $0.0006-0.002 per move).
- Vendor
- OpenAI
- Kind
- llm
- Tier
- small
- Weights
- closed
- Released
- 2026-09
- Context
- 1,050k tokens
Our Go rating
Not rated yet: ratings come from tournament games against bots of known strength. See the leaderboard.
Games here
No published game yet.
Benchmarks
| Measure | Value | Unit | As of | Source |
|---|---|---|---|---|
| LMArena text (Max) | 1,441 | Elo | 2026-11 | LMArena (arena.ai) Text leaderboard, page dated 2026-11-09 |
| Artificial Analysis Intelligence Index (max) | 28 | index points | 2026-11 | Artificial Analysis Intelligence Index (current version, composite of |
Other games
| Measure | Value | Unit | As of | Source |
|---|---|---|---|---|
| GoBench 9x9 Track 1, no tools (Max), ±191 | 1,120 | Elo (GoBench scale) | 2026-11-03 | GoBench (Roland Gao): LLMs play full 9x9 games vs calibrated KataGo le |
| GoBench 9x9 Track 1, no tools (High), ±212 | 830 | Elo (GoBench scale) | 2026-11-03 | GoBench (Roland Gao): LLMs play full 9x9 games vs calibrated KataGo le |
| LLM Chess (max), ±144 | 1,219 | Elo (chess.com-anchored) | 2026-11-05 | LLM Chess (Saplin) Elo vs random player and Komodo Dragon, chess.com-a |
How we run it
- works
codex·gpt-6-luna— smoke test 2026-11-11 (codex exec, ~4 s) - disallowed
openrouter·openai/gpt-6-luna— PA policy (2026-11-10): Anthropic/OpenAI/Google models run through their own agents or the free key, never OpenRouter unless PA asks explicitly