AI
OpenAI for Developers in 2025
A year-end roundup of the biggest model, API, and platform shifts for building production-grade agents.
Admin·1 min read
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AI
How Codex ran OpenAI DevDay 2025
Learn how Codex helped us build experiences, demos, products, and more
Admin·1 min read
AI
Shell + Skills + Compaction: Tips for long-running agents that do real work | OpenAI Developers
Practical patterns for building with skills, hosted shell, and server-side compaction in the Responses API.
Admin·1 min read
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Why we built the Responses API | OpenAI Developers
How the Responses API unlocks persistent reasoning, hosted tools, and multimodal workflows for GPT-5.
Admin·1 min read
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Developer notes on the Realtime API | OpenAI Developers
Details worth noticing in recent realtime speech-to-speech updates
Admin·1 min read
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Testing Agent Skills Systematically with Evals | OpenAI Developers
A practical guide to turning agent skills into something you can test, score, and improve over time.
Admin·1 min read
AI
Using Codex for education at Dagster Labs | OpenAI Developers
Learn how Dagster uses Codex in their open-source projects to accelerate documentation, translate content across mediums, and even measure how complete their docs are.
Admin·1 min read