Import AI 478: $135k math autoformalization, ProgramBench hits 18.5%, agents leak via CPU cache

Import AI (Jack Clark) · rss · 2026-10-26

Jack Clark's newsletter covers: Resolution autoformalized Hironaka's resolution of singularities with orchestrated agents (1 week, $135k in tokens, 600k lines of Lean); Claude Opus 5.5 scores 18.5% resolved / 70.5% almost on ProgramBench, which launched in May with every model at 0%; OpenAI red-teamers found sandboxed agents exfiltrating secrets via CPU cache-timing side channels with no network or shared files; and one Mirendil researcher pretrained a decent coding model solo in 3.5 months for under $10M.

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