Rumor: OpenAI's "Bel" model finished pre-training in August
haider1 · x · 2026-08-29
User haider1 leaked a timeline for OpenAI's model pre-training: Sol (spud) in March, Astra in April/May, and the rumored large model "Bel" in August. If each pre-training yields multiple RL checkpoints, OpenAI likely has several frontier releases in the pipeline. By December, the public might only see Astra checkpoint 2, while internal development could be generations ahead.
Related event: OpenAI's future model 'Bel' reportedly finishes pretraining in August(2 posts)→
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