Liam Fedus unveils Neon: an open model beating GPT-6 Astra on materials analysis with just 1,300 H200s

sudoraohacker · x · 2026-09-16

Liam Fedus describes his team's automated materials-science loop: high-throughput labs in Menlo Park generate fresh experimental data, models learn from it, and then decide what experiments to try next.

Key numbers: using only 1,300 H200s plus months of proprietary experimental data, they mid-trained and RL'd an open-source model called Neon that surpasses GPT-6 Astra on their analysis benchmark, with real lab footage shared.

Related event: Ex-OpenAI Exec's Periodic Trains Neon to Beat GPT-6 in Materials Science(37 posts)→

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