Codex Mac app hit 5M weekly users in 4 months, then became the ChatGPT app
every · x · 2026-10-15
Every recounts, via interviews with the team (gdb, thsottiaux, ajambrosino, embirico, miaglaese, edbayes and more), how the Codex Mac app launched in February reached 5M weekly users by June — 1 in 5 a knowledge worker, not a developer — and a month later was rebranded as the ChatGPT app, charting the shift from dev tool to general AI entry point.
More from coding & agent
- Dev builds Mumbai 3D manga background generator with Claude Opus: 25 landmarks, 4 styles — CurieuxExplorer · 2026-10-15
- Santiago AI meetup: LATAM Airlines shares prod architecture, LangChain demos DeepAgents — leslysandra · 2026-10-15
- Why most companies shouldn't be using AI agents yet — and the millions wasted daily on hype — DavidLinthicum · 2026-10-15
- IAPS report: honeypots can catch rogue AI agents before they do real harm — vkrakovna · 2026-10-15
- Dev builds wildfire analysis tool with Claude Opus to track fires and drones — nikola_mr64990 · 2026-10-15
- Solo dev shipped a product in 10 weeks: Claude designed, Codex wrote the backend — theteknosaur · 2026-10-15