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Today we’re announcing Open Responses: an open-source spec for building multi-provider, interoperable LLM interfaces built on top of the original OpenAI Responses API.
Multi-provider by default
Useful for real-world workflows
Extensible without fragmentation
Build agentic systems without rewriting your stack for every model: http://openresponses.org
Codex now officially supports skills
Skills are reusable bundles of instructions, scripts, and resources that help Codex complete specific tasks.
You can call a skill directly with $.skill-name, or let Codex choose the right one based on your prompt.