Codex overtakes ChatGPT as OpenAI’s primary AI workhorse, reshaping product roles
OpenAI says Codex now handles 85% of its workers' AI output, eclipsing ChatGPT as the default tool across every department. The shift shows AI‑driven knowledge work moving from quick queries to long‑running, autonomous agents that can tackle multi‑hour tasks. This hints that future product teams will spend more time defining problems and less on manual implementation.