dominik kundel
14.3K posts

dominik kundel
@dkundel
@OpenAI DevX, Codex, gpt-oss, TS Agents SDK - he/him - Opinions my own







We've reached an agreement to acquire Astral. After we close, OpenAI plans for @astral_sh to join our Codex team, with a continued focus on building great tools and advancing the shared mission of making developers more productive. openai.com/index/openai-t…



Subagents are now available in Codex. You can accelerate your workflow by spinning up specialized agents to: • Keep your main context window clean • Tackle different parts of a task in parallel • Steer individual agents as work unfolds

I don’t give a lot of compliments but the way Codex cli & app is designed so it reuses code (that anyone else can reuse as well) is really quite elegant. Elegant in a way that it could only be the result of an experienced & thoughtful team. Which is rare at their speed & scale.



GPT-5.4 mini is available today in ChatGPT, Codex, and the API. Optimized for coding, computer use, multimodal understanding, and subagents. And it’s 2x faster than GPT-5 mini. openai.com/index/introduc…





















