GPT-6 is a model family: Astra is just the flagship, more to come

mark_k · x · 2026-09-06

The author clears up confusion about GPT-6: it's a family of models, with Astra as its flagship. Astra is the first member currently available — the most powerful and most expensive, but not the only one. GPT-6 Luna, Terra, and Sol will follow, and those models will also be available in Chat.

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