Predicting GPT-6.1 Luna ships first, Astra saved to take on Claude Opus 5.5

Timurs Jeparskis @TJeparskisOriginally posted 2026.10.27

Open original on X

I think we’ll get GPT-6.1 Luna before Tibo’s 28-day challenge ends, and I really hope OpenAI saves GPT-6.1 Astra for the final day! After Sol and Terra, releasing a new flagship would be the perfect way to finish this challenge. I just want to see OpenAI finally deliver a model that can beat Claude Opus 5.5! That would be a much better ending than another round of usage resets:)