Simon Willison live-blogs OpenAI DevDay for fourth straight year

Simon Willison is live-blogging OpenAI DevDay 2026 at Fort Mason, San Francisco for the fourth year running, having built a phone photo-posting system with Codex Cloud on his way to the venue.

2026-09-30 ~ 2026-09-30 · 3 related posts

• Simon Willison live-blogs DevDay, builds photo upload system with Codex then Claude Code — petrusenko_max · 2026-09-30
• Simon Willison live-blogs OpenAI DevDay 2026 keynote for the fourth year running — HamelHusain · 2026-09-30

1 near-duplicate retellings: ricklamers