Leak: OpenAI's Next Model 'Astra' Uses Pretrain 'Doug', GPT-4.5 Retired Over Costs
holdenmatt · x · 2026-08-10
A leaker on X revealed details about OpenAI's internal model development roadmap and codenames:
- GPT-4.5 Retirement: It was a successful large pretrain but was deprecated after just a few months due to excessively high API serving costs.
- Current Models: OpenAI previously struggled with pre-training but excelled at post-training. Their new model family (codenamed Sol, Terra, Luna) is based on a large pretrain called Spud.
- Next-Gen Model: The upcoming model, codenamed Astra, utilizes an even larger pretrain codenamed Doug.
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