Simon Willison live-blogs OpenAI DevDay 2026 keynote for the fourth year running

HamelHusain · x · 2026-09-30

Simon Willison is live-blogging OpenAI's DevDay 2026 keynote from Fort Mason, San Francisco, his fourth year covering the event. He also notes he vibe-coded a photo-publishing system for the live blog — originally on Codex Cloud from his phone, but switched to Claude Code for web after running into problems.

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