OpenAI model introduced alongside GPT-6 Sol with lower reported API prices.
AISystem
GPT-6 Luna
Sources
Attribution and reporting linked by this record; links do not imply independent verification.
- Welcome to September 24, 2026 (theinnermostloop.substack.com)
- Source linked by the September 24 issue (openai.com)
- Welcome to September 27, 2026 (theinnermostloop.substack.com)
Development timeline
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