DevDay predictions: GPT-6 Luna, Terra, Sol and GPT-Image-2.5

Dan @DanDr1sOriginally posted 2026.09.06

Open original on X

OpenAI DevDay is September 29. Likely releases: • GPT-6 Luna • GPT-6 Terra • GPT-6 Sol • GPT-Image-2.5 And there could be something much bigger. OpenAI says Astra boosted internal productivity so much that some plans were pulled forward by 6 months. things meant for mid next year are now shipping at DevDay. This DevDay should be stacked.

This post quotes another post: “OpenAI staffer says Astra pulled internal plans forward by six months”