Source says GPT-6 family includes Astra, Sol, Terra and Luna

Token Gremlin @TokenGremlinOriginally posted 2026.09.06

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A source I consider extremely reliable has now told me that OpenAI is working on: → GPT-6 Astra → GPT-6 Sol → GPT-6 Terra → GPT-6 Luna So yes, it looks like the Sol / Terra / Luna family may actually continue into GPT-6. If their roles remain anything like the previous generation, the easiest way to think about the lineup might roughly be: Astra ≈ Fable Sol ≈ Opus Terra ≈ Sonnet Luna ≈ Haiku That comparison is my interpretation, not something my source told me, and exact positioning could still differ. But if this holds, the GPT-6 family is much bigger than Astra alone.