OpenAI launches Agents API in public beta, putting the Codex harness behind a single API call
OpenAI has launched the Agents API in public beta, putting the Codex harness behind a single API call. The announcement was made on 10 September 2026 and was covered by twelve sources.
Who is affected and how
- senior developer
- Instead of building your own agent orchestration, the hosted Codex harness can be tried and compared with an in-house solution.
- tech lead
- Internal tools built on the API may be faster to develop, but vendor lock-in and cost limits should be weighed in advance.
- startup founder
- An agent-based product can be built with less infrastructure, but platform dependence grows.
Sources
- OpenAI Launches the Agents API in Public Beta, Putting the Codex Harness Behind One API Callmarktechpost · Sep 10, 2026
- Introducing the Agents API | OpenAIopenai.com · Sep 10, 2026
- OpenAI lanza Agents API con la base de Codexacademiartificial.com · Sep 10, 2026
- OpenAI launches Agents API in public beta for developers By Investing.cominvesting.com · Sep 10, 2026
- OpenAI Agents API: Cloud-Agenten mit Codex-Harness | AIToollyaitoolly.com · Sep 10, 2026
- OpenAI opent Codex-harnas met Agents API in bèta - AI-Feiten.nlai-feiten.nl · Sep 10, 2026
- OpenAI Agents API: Codex harness for developerstbreak uae · Sep 11, 2026
- OpenAI's new Agents API gives developers the infrastructure behind Codex and ChatGPTthe-decoder.com · Sep 11, 2026
Machine-generated summary based on the titles and excerpts of the source articles. The facts come from the linked article.