AgentsSeptember 10, 2026via OpenAI Blog
Introducing the Agents API
Why it matters
OpenAI is commercializing agent infrastructure as a managed service, lowering the barrier for enterprises to move agents from pilot to production. This is a direct product play in the agent category—not a model release, but the platform layer that makes agent deployment operationally viable at scale.
Key signals
- Agents API is a managed service (not open-source, not a model)
- Built on Codex harness for orchestration
- Features: long-running sessions, tool use, cloud-native architecture
- Removes need for teams to hand-build orchestration and state management
- Published September 2026—shipping date unclear from headline alone
- Positioning: infrastructure for enterprise agent deployments
The hook
OpenAI launches managed Agents API—enterprises can now deploy autonomous systems without building orchestration from scratch.
Build and launch cloud agents with the Agents API, a managed service powered by the Codex harness for orchestration, long-running sessions, and tool use.