Import AI: AI Hacking Capabilities Growing Fast — Steps Completed Rose From 1.7 (GPT-4o) to 9.8 (Opus 4.6) on Corporate Networks

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Jack Clark's Import AI newsletter reports that on corporate network attack ranges, average steps completed at 10M tokens rose from 1.7 (GPT-4o, August 2024) to 9.8 (Opus 4.6, February 2026), a 5.8x improvement. Best current models achieve 50% success on tasks taking human experts 3.2 hours. Separately, forecaster Ryan Greenblatt doubled his estimate from 15% to 30% that fully automated AI research will be possible by end of 2028.