Rumor: OpenAI's GPT-6 'Astra Minor' is the new Sol, replacing Terra
daniel_mac8 · x · 2026-09-23
Unverified rumor from danielmac8: OpenAI's rumored "GPT-6 Astra Minor" is reportedly the new "Sol," with Sol itself succeeding "Terra" — and Terra allegedly being retired. He calls Astra Minor OpenAI's competitor to Opus 5.5 and hints more releases may come this week. No official confirmation.
Related event: Rumor: OpenAI's GPT-6 Astra Minor Surfaces in Daybreak Docs(2 posts)→
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