CODEX

Repro steps in a wall of text get skimmed. Have a coding agent write a failing Playwright test, record the headed run in Screen Studio, and attach a 30-second clip plus the checked-in test to the issue. Seven steps, under an hour.

Everything OpenAI announced at DevDay 2026: GPT-6.1 Sol at $2/$10, Ultrafast, Decisions API, Agents API, cloud Codex, and what to test first.

OpenAI shipped GPT-6.1 Sol on September 29: near-Astra benchmark scores at a fifth of Astra's price, cache reads cut to $0.10 per million tokens, 1.05M context, and same-day Codex availability. The verified pricing, the Astra 6.1 safety hold, the community read, and how to run it.

CC Switch is an open-source desktop app that switches API providers for Claude Code, Codex, Gemini CLI and seven other agents in one click, and syncs MCP servers, skills, and prompts between them. Here is what it does, how to install it, and how to use it safely across Claude Code and Codex.

Codex is included in ChatGPT plans from Free to Enterprise. On September 29, 2026, OpenAI reopened Pro $200 with roughly half the old usage value, added Pro $500 with Astra Ultrafast, and left Plus at $20/month. Existing Pro $200 subscribers keep their old allowance through October 29, 2026. Here is how resets work, what each plan buys, and what to do about 'Selected model is at capacity'.

GPT-6 Astra is OpenAI's max-capability model: 1.05M context, $10/$50 per million tokens, the first OpenAI model rated Critical for cyber, and new highs on Terminal-Bench 4.0 and OSWorld 2.0. What it is, what the benchmarks do and do not say, and the verified commands to try it.

A developer-first overview of the GPT-6 family: what Astra, Sol, and Luna are, what each costs per million tokens, the three new API features (async tool calling, mid-turn steering, cache-safe reasoning changes), and how to try each tier in Codex and the API today.

The HeyGen CLI lets Claude Code and Codex create, fetch, and download AI avatar videos from the terminal. Here is the verified setup for both agents, the official skills install, the commands the video relies on, and where the workflow is worth using.

You cannot install Claude Code or Codex inside the Meta Muse app, but you can run both agents on Muse Spark 1.3 through the Meta Model API, use Muse Spark from OpenCode Go, and bring your Claude Code and Codex setup into Muse Code. Here are the verified configs.

OpenAI DevDay 2026 is Tuesday, September 29 at Fort Mason in San Francisco, with Sam Altman's keynote livestreamed free at 10:00 a.m. PT. What OpenAI has confirmed, what Fortune and BleepingComputer have reported, which rumors are still unconfirmed, and what each would change for developers.

The latest Developers Digest demo has GPT-6 driving Codex to build a single-file Three.js world - five walkable rooms with AI-generated wall assets and even a museum room that teaches LLM concepts. Here is the verified toolchain and when this web-native 3D path wins.

GPT-6 Astra drove Codex to script a playable Mars car game in Blender, then turned the same 3D assets into cinematic trailers with Higgsfield's Blender plugin and Seedance video. Here is the verified toolchain, plugin setup, and when this workflow beats text-to-video.

GPT-6 Astra built a complete yoga clothing store from one prompt in the latest Developers Digest video - generated product photography, click-through product pages, and a custom AI video hero, wired through Codex and the Higgsfield CLI. Here is the verified workflow from the docs, plus how Genjutsu re-versions a single video for every market.

Codex CLI 0.154.0 adds experimental worktrees, inline answers, Windows daemon support, and approval hardening. The important shift is durable agent workspace control.

The Rime CLI streams natural-sounding text-to-speech straight from your terminal, so Claude Code, Codex, Devin, and OpenCode can end each step with a brief spoken summary plus a next-step question. Install, commands, flags, and the agent prompt pattern behind the demo.

Codex Computer History gives agents a rolling view of work across apps. Here is how it works, where it helps, and the privacy boundaries developers should understand.

A decision-intent comparison of pi, Claude Code, OpenCode and Codex CLI as your main agentic coding harness in late 2026, with a verified capability matrix and pick-X-if verdicts.

Claude Code and Codex can build a website in minutes, but the result often looks generic and obviously AI-generated. Higgsfield's MCP and CLI put Nano Banana Pro and Seedance inside the agent loop, so your coding agent generates its own food imagery, hero video, and visual polish before it ships the site.

OpenAI published real usage data from its enterprise customer base: Codex now drives 64% of enterprise output tokens, and the top 10% of firms generate 8.3x the tokens of typical ones. What the frontier gap says about agentic AI's spread beyond engineering.

Self-improving applications shift the economics of maintenance. Instead of per-token pricing, you pay per closed issue - and the closed loop (user feedback to GitHub issue to Codex scheduled task to reviewed PR) means the cost is predictable, the fixes are testable, and the human is in the merge decision, not the implementation.