Dominik Kundel
All activity
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 Models
OpenAI Open Modelsgpt-oss-120b and gpt-oss-20b open-weight language models
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 Mode
Twilio SIGNAL Developer ModeNew opensource terminal UI for Twilio's digital conference