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Codex now supports subagents, allowing you to spawn specialized, parallel AI workers for complex coding tasks. By defining custom TOML agents with isolated roles (like explorers and reviewers), you can execute multi-step workflows without context rot.
Codex SubagentsParallel custom agents for complex tasks
The official Codex desktop app by OpenAI brings parallel coding agents natively to Windows. It isolates tasks in OS-level sandboxes and dedicated worktrees so agents can write, test, and propose code without trashing your local environment.
Codex app for WindowsCodex now runs natively on Windows with secure sandbox
Advances the frontier of coding and computer work. SOTA on SWE-Bench Pro (57%) and OSWorld (64%). Features mid-task steerability (interact while it works), 25% faster speeds, and "High" capabilities in cybersecurity.
GPT-5.3-CodexExpanding Codex to the full spectrum of computer work
Apache 2.0 licensed open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases.

OpenAI Open Modelsgpt-oss-120b and gpt-oss-20b open-weight language models
Dominik Kundelleft a comment
If you want to try it out live you'll need a SIGNAL ticket/account. You can still register for SIGNAL until Oct 1, 11:59pm for a free ticket and get access to the content until Oct 31. https://signal.twilio.com

Twilio SIGNAL Developer ModeNew opensource terminal UI for Twilio's digital conference
Dominik Kundelleft a comment
Hey Product Hunt! We wanted to empower attendees at SIGNAL to be able to immediately build with Twilio products as we talked about them at the conference to reduce time to magic. By building an experience in the terminal, the tool can automatically set up relevant things for your system that a simple download wouldn't be able to. By creating a visual UI rather than a line by line terminal...

Twilio SIGNAL Developer ModeNew opensource terminal UI for Twilio's digital conference
Developer Mode is an opensource augmentation to your existing SIGNAL experience running inside your Terminal. It's a Twilio CLI plugin and available to any SIGNAL ticket holder, including free tickets, and see if you can find the hidden "cheat mode!"

Twilio SIGNAL Developer ModeNew opensource terminal UI for Twilio's digital conference

