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The Codex app, CLI and SDK: releases, model support and workflows. Curated and summarized from dozens of sources by AIBriefs.
Codex Astra led all models but none played beyond beginner level; Grok models were not smart enough to play Brood War. Older models treated the RTS as turn-based and got destroyed while thinking, while newer models better grasped the cost of thinking.
A Reddit user combined the SeedHunter 1.5 workflow by Fox•Fur•Essence with Seitanism's long-form music video workflow, then used Comfy MCP and Codex to build a merged pipeline. The result was their first music video, "Everything Is Melting."
Air Security found four AI coding agents fetch a plugin's commit-hash snapshot but never verify the code matches it, so a repo owner can point a hash-shaped branch name at malicious code. Anthropic patched Claude Code 2.1.179 and OpenAI patched Codex 0.146.0; GitHub Copilot has no fix and Google won't patch the retiring Gemini CLI.
A Reddit user says spending over $1,000 on OpenAI unlocked the highest Codex tier, Tier 5, and came with a $500 grant usable in Codex. The user asks whether OpenAI will add more credits over time.
OpenAI's ChatGPT Admin Console now surfaces AI adoption, usage, and spend across an organization, plus Codex contribution data. An Admin plugin turns those analytics into reports to target training and expand access.
WIRED's Will Knight fed a year of top headlines into an open-sourced drosophila connectome of 166,000 neurons and 125 million synapses, using Codex to encode the text. The fly brain doesn't understand words — it remixes patterns, producing pitches like "Everyone Wants Cooking. Nobody Has Solved Donald Trump."
GPT-5.5 will remain available via the OpenAI API Platform and in Codex sessions authenticated with an API key, per OpenAI Developers. Reddit users note the model is being retired or replaced, with some saying newer models aren't always preferred for every task.
A Reddit user reports their Claude Max 20x plan ends today amid a Claude Code usage nerf, and asks whether Codex 20x usage will now be far ahead. They are deciding whether to resubscribe to Max 20x or try Codex 20x for a month.
A Reddit user pointed a MacBook camera at a Bluetooth cat printer and an ESP32-S3, then gave Codex (GPT-5.6) terminal and camera access to convert it into a Wi-Fi printer for browser-based image printing.
A non-programmer used GPT-6 Astra in Codex over a week to diagnose a RetroFreak RF-1 emulator console stuck on an endless white screen with unreliable power-on.
AgentsDock is a macOS 14+ desktop and mobile workspace that runs Claude Code, Codex, and Cursor side by side, with optional Tailscale and tmux support. It connects multiple servers — lab workstation, Mac mini, rented GPU box — and offers remote file editing and persistent terminal access.
Git AI co-founders Aidan Cunniffe and Sasha Varlamov are joining OpenAI, announced by Cunniffe on LinkedIn. Git AI is an open-source tool that tracks how much code is written by AI and measures coding-agent performance and cost.
A Reddit user on the Plus tier set up Astra to plan and delegate work to Sol sessions instead of doing tasks itself, replacing a manual handoff loop of copying results between the two.
Users report building full games and simulators with GPT-6 Astra: a StarCraft-inspired Unity game in 36 hours, a 3D endless runner from one 2D drawing, and a fusion reactor lab from a 60-page prompt in 4 hours. OpenAI's own post details Cognition's Devin using Astra to test its own work.
Reddit users report old ChatGPT web conversations returning "This content is unavailable or could not be found," with loaded threads missing the chat input box. New chats either prompt use of 5.3 or show "No models available," while Codex reportedly works normally.
A developer spent several months rebuilding the original SNES Mega Man X with Claude and Codex, aiming to match the original's play and feel as faithfully as possible.
The Agents API is a managed service powered by the Codex harness, handling orchestration, long-running sessions, and context management. Developers supply compute via an OpenAI-managed sandbox, their own infrastructure, or partner sandboxes including Daytona, E2B, Vercel, and DigitalOcean's M.A.R.S.
César de la Fuente's lab searches living and extinct genomes with Codex and ChatGPT for antimicrobial candidates against drug-resistant infections. OpenAI published a researcher profile and video on the workflow.
Andreas Thom says OpenAI's non-sofic groups result built heavily on prior work by him and Gábor Kun, and that his ChatGPT and Codex interactions may have fed the model. OpenAI quietly amended its writeup after criticism; Tristan Buckmaster raised similar concerns.
Every OpenAI pull request now undergoes automated security review, with the AI able to stop code from merging if it finds a vulnerability. Thibault Sottiaux, engineering lead of the Codex team, described the system.
OtoDock is a free, self-hosted multi-tenant company OS that integrates Claude Code and Codex agents into departments. Built by Dimitris, it combines Claude Code, Cowork, and cloud sessions into one application.
Pragmatic Engineer episode with Tibo Sottiaux, who created Codex and now heads OpenAI's Core Products & Platform org. Covers why the Codex CLI is written in Rust and released open source, how the harness and models evolved, and why Codex supports models from multiple providers.
MIT EQuS researcher Bea Yankelevich used GPT-5.6 Sol with Codex to run routine measurements on quantum chips, speeding up her experiment design.
Engineers at 1Password use OpenAI's Codex to build features and internal tools, achieving a 21% productivity increase while maintaining rigorous security policies.
A $200/month Claude Max subscriber says their entire week's usage quota was consumed in a single day, asking whether Codex handles usage better. The post includes a screenshot of the usage dashboard.
OpenAI engineering lead for Codex Thibault Sottiaux says developers should still upgrade from GPT-5.6 Sol and turn the reasoning setting down to save money.
Two Reddit users say they received "Cyber Abuse" warnings on ChatGPT accounts they use for Codex coding tasks. One appeal was rejected with the warning upheld; neither user was told what triggered it.
A Reddit user with 300+ hours in The Witcher 3 used OpenAI's Codex to translate the entire game, aiming to read all in-game books, notice boards, and bestiary entries. The post has 34 upvotes and 8 comments.
Users on Linux.do and NodeSeek report Astra consuming 4-5x Sol's quota rather than the expected 2.5x, suggesting a Codex quota accounting discrepancy.
Plus subscribers report Astra access limited to the Work tab and Codex, not regular Chat, per OpenAI's rollout. Users say Astra in Codex burns usage quotas fast, sometimes in a single prompt.
Halv, a desktop app for running Claude Code, Codex, Kimi, and GLM side by side, reports 51% fewer tokens and 10/20 verified answers vs 7/20 vanilla on SWE-rebench tasks. It compresses context, filters noisy output, and uses a code index.
A developer comparing Astra with Claude and Codex says the model shows high intelligence but low intuition, after leaning heavily on Codex and Sol 5.6 for business development work.
Researchers scanned 6,214 live domains at defense contractors, Fortune 500 and Big Tech firms, finding 8,265 llms.txt files — 120 pointed to unregistered code packages or domains. After registering some, a Fortune 500 company phoned home within an hour; logs tied installs to Claude, Codex and Hermes agents.