OpenAI's own code points to a hosted agent platform. Will it launch Managed Agents at the Sept 29 DevDay keynote?
70% of users predicted NO — the community missed this one. 10 predictions cast.
OpenAI unveiled its Agents API and an associated hosted "Managed Agents" platform at its DevDay keynote in San Francisco on September 29, 2026. The system gives developers a managed agent runtime in which OpenAI handles sessions, orchestration, context compaction, and recovery, while developers define tools and execution environments; the API, which had entered public beta earlier in September, gained new capabilities including computer use, letting agents operate software through an OpenAI-hosted browser. OpenAI also announced a partnership with Amazon, called Bedrock Managed Agents, allowing the same agent harness to run entirely inside AWS, with inference on Amazon Bedrock and customer data kept within AWS. The launch followed earlier signs, reported by independent analysts, that OpenAI's own code and developer-platform changes pointed toward a hosted agent offering ahead of the event. The announcement came alongside more than 20 other DevDay reveals, including the GPT-6 Astra-powered "Dots" always-on agent and updates to Codex. The prediction-market community had given "Yes" only a 30% probability, making "No" the majority view; the market resolved "Yes," meaning the community was wrong.