OpenAI's new Agents API gives developers the infrastructure behind Codex and ChatGPT
OpenAI's Agents API is now in public beta. Developers can build autonomous agents that run for hours, execute code, and spawn sub-agents—with no markup beyond token costs.
Why it matters
This is infrastructure democratization: the agent-building primitives that powered Codex and ChatGPT internals are now available to any developer. Practitioners need to evaluate whether to build agents on this platform or alternatives; enthusiasts see OpenAI establishing the baseline API for the agentic era.
The key facts
7 to knowAgents API in public beta
Supports autonomous execution for hours
Code execution capability included
Sub-agent handoff supported
Pricing: token usage only, no platform markup
Sandbox partners: Cloudflare, Vercel, Oracle
Based on infrastructure from Codex and ChatGPT
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: OpenAI is releasing the Agents API as a public beta. It lets developers build cloud agents that run autonomously for hours, execute code, and hand off tasks to sub-agents. There are no extra fees beyond token usage. Cloudflare, Vercel, and Oracle offer additional sandbox environments.