Engineer Speculates OpenAI Has Started GPT-6.5 Pretraining, Beating Astra
OpenAI engineer willdepue speculates the company has begun pretraining astra-next/GPT-6.5, which already outperforms Astra in evals. Some suggest it may be a math-focused pretraining run.
2026-09-09 ~ 2026-09-09 · 2 related posts
- Episode 1: OpenAI's future model 'Bel' reportedly finishes pretraining in August(2026-08-28, 2 posts)
- Episode 2: OpenAI's Next-Gen Model Astra Reportedly Trained on Over 100K GPUs(2026-09-02, 10 posts)
- Episode 3: OpenAI Researcher Says GPT-6 Astra Will Be Obsolete in Weeks(2026-09-04, 4 posts)
- Episode 4: OpenAI Reveals Internal Model Far Stronger Than GPT-6 Astra(2026-09-09, 8 posts)
- Episode 5: Engineer Speculates OpenAI Has Started GPT-6.5 Pretraining, Beating Astra(2026-09-09, 2 posts)
- OpenAI May Already Be Pretraining GPT-6.5 That Beats Astra on Evals — willdepue · 2026-09-09
- Speculation swirls: OpenAI's mystery model may be math-specialized pretraining beating GPT-6 Astra — giffmana · 2026-09-09