OpenAI’s refresh of Codex — now branded and promoted as GPT‑5‑Codex — is a deliberate pivot toward making AI agents practical teammates for software engineering, not just clever autocomplete. The update stitches together faster interactive pairing, longer-running autonomous project work, and tighter integrations across terminals, IDEs, cloud sandboxes, GitHub, and mobile, promising meaningful developer productivity gains while raising fresh questions about reliability, governance, and cost...