GPT-5.3-Codex and Claude Opus 4.6 can handle the full app development lifecycle on their own, a sign of what's coming for most knowledge work within five years news shumer.dev

Matt Shumer: GPT-5.3-Codex and Claude Opus 4.6 can handle the full app development lifecycle on their own, a sign of what's coming for most knowledge work within five years  —  Think back to February 2020.  —  If you were paying close attention, you might have noticed a few people talking about a virus spreading overseas.