Codex Weekly: GPT-5.5 Ships, Agents SDK Gets Sandboxes, and Codex Crosses 4M Developers
This was one of the busiest weeks OpenAI has shipped all year. GPT-5.5 arrived as the new frontier model in ChatGPT and Codex. Workspace agents turned …
Codex-Weekly
Codex Weekly: Astral Acquisition, GPT-5.4 Mini, $110B
The week ending March 22 was dominated by three moves: OpenAI’s planned acquisition of Astral — the company behind Python’s …
Codex Weekly: Security Scanner, Pentagon Fallout, GPT-5.4
Three stories defined the OpenAI week ending March 15: the launch of Codex Security — a vulnerability scanner claiming a 50%+ false-positive reduction …