RDLTR

Short for Read Later. Save links from any browser or phone. Click to save, read to clear. The full tour

One line. Many voicesSeek and you shall find

developers.openai.com faviconLong horizon tasks with Codex

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OpenAI's Codex successfully built a design tool from scratch over 25 hours, demonstrating long-horizon agentic coding with milestone-based planning and continuous verification.