Q&A with Simon Willison on the November release of GPT-5.1 and Opus 4.5 as the inflection point for coding, exhaustion due to managing coding agents, and more (Lenny Rachitsky/Lenny's Newsletter)
Upstract [Unofficial]
April 4, 2026
Lenny Rachitsky / Lenny's Newsletter: Q&A with Simon Willison on the November release of GPT-5.1 and Opus 4.5 as the inflection point for coding, exhaustion due to managing coding agents, and more — Simon Willison is a prolific independent software developer, a blogger, and one of the most visible…
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