All content about Codex
Recent developments in Codex technology highlight enhancements in long-horizon coding capabilities, improved cybersecurity features, and efficient project management across various coding environments. New versions emphasize token efficiency and safety controls, while practical guides are emerging to facilitate direct interaction with Codex agents for streamlined development processes. Additionally, innovative implementations showcase the versatility of Codex in different programming contexts, although some applications remain experimental.
GPT-5.2-Codex adds long-horizon context, improved large-scale code changes, Windows support, vision inputs, and stronger defensive cybersecurity. Now available to paid ChatGPT users; invite-only pilot for vetted teams.
GPT‑5.1‑Codex‑Max adds compaction and token‑efficient reasoning to Codex, enabling coherent multi‑hour project coding across CLI, IDE, and cloud. It runs sandboxed by default with monitoring and safety controls.
Simon Willison shows how to run OpenAI’s Codex CLI on a Mac while offloading the actual AI model to a GPT-OSS 120B instance running on his DGX Spark via Tailscale and Ollama. It works—even for building a Space Invaders game—but it’s more of a fun hack than a daily driver.
Superpowers 3.3.0 runs SKILL.md agent workflows on OpenAI Codex with a Claude-to-Codex mapping, bootstrap, and helper scripts. Installer available — warns it downloads and executes code (remote execution risk).
A concise, practical guide to agent-driven development for large TypeScript/React codebases. Focuses on direct CLI interaction with gpt-5-codex agents, atomic commits, blast-radius edits, and lightweight planning.
Armin Ronacher describes a Go project where AI wrote ~90% of 40k lines—handling raw SQL, OpenAPI REST, SDKs, and Pulumi infra. He praises speed and iteration but warns human review is essential to avoid brittle systems.
OpenAI now offers GPT-5-Codex to developers via Codex API keys, at the same price as GPT-5 and available only through the Responses API. This enables IDE/editor integrations—see platform docs and changelog.
OpenAI’s Codex now integrates with VS Code, supports cloud delegation, and aligns with ChatGPT plans, with enterprise controls, data options, and documented limits for local and cloud tasks.