Lineage
- Company
OpenAI- GPT Luna family
- GPT-5.6 LunaGPT-6 Lunathe family
- Assistants that offer it
- ChatGPTselectable, Free, Go, Plus, Pro (official page ↗)
- API price
- 0.10 $ per million tokens read, 0.50 $ written (developers.openai.com/api/docs/pricing, read on 5 November 2026)
Links read on 10/11/2026 on company pages, the press as a fallback; a link given for a family applies only to its latest version.
Rank in each benchmark
- General intelligenceEpoch AI, ECI index156.5154.6 to 158.633rd out of 71
- User preferenceLMArena, Elo score144152nd out of 68
- Agent tasksEpoch AI, APEX-Agents44.3 %33.5 to 55.140th out of 52
- Coding tasksEpoch AI, CursorBenchnot measured
- Code repairEpoch AI, DeepSWEnot measured
Each segment of the bar is worth a tenth of the ranking; the 1st groups the best ranked. Rank among models released in 2026 and measured by the benchmark. Sources: Epoch AI, "Capabilities & benchmarking" (CC BY 4.0); LMArena, text with style control (CC BY 4.0); data as of 10 November 2026.
GPT-6 Luna among OpenAI's models, general intelligence
Epoch AI ECI index and its 95% interval, by release date; 14 OpenAI models released in 2026 and measured by the ECI index
Dot: the index measured, at the release dateLine: the 95% intervalGPT-6 Luna5 names in the "Table" tab
Source: Epoch AI, "Capabilities & benchmarking", ECI index. CC BY 4.0 licence.
Continue in the ranking
The full ranking →CompanyOpenAI14models measured, of which 10 with an entryIts assistant, its models, its governance and the electricity of its data centres.The entry →ModelOpenAIGPT-5.6 Luna31stout of 71 on general intelligenceThe previous version of GPT Luna.The entry →AssistantChatGPT62out of 100, 3rd out of 10The assistant in the ranking that offers GPT-6 Luna.The entry →The hub newsletter
This month's ranking, news on the impact of AI and one figure from the AI Impact Database. One newsletter a month at most, free of charge. Past issues
