OpenAI Agents API: what the Codex harness takes over
OpenAI now hosts the Codex agent loop for your application. I explain how the Agents API differs from the SDK, what persists and which costs remain.
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Every article tagged multi-agent, newest first.
OpenAI now hosts the Codex agent loop for your application. I explain how the Agents API differs from the SDK, what persists and which costs remain.
Codex gives me more usage, cleaner frontend work, and a smoother app. Claude still finishes my large multi-agent features in hours instead of all day.
In my release audit, GPT-5.6 Sol found nearly six times as many possible issues as Fable 5. Most failed triage, so I changed how I use it on coding tasks.