OpenAI launched the public beta of its Agents API on September 10, allowing developers to build and run cloud-based agents through the API, according to Jiemian News. The API uses an agent runtime framework and infrastructure powered by Codex, and lets developers specify tasks, models, tools and execution environments. Developers can choose OpenAI-hosted sandboxes, their own infrastructure or sandbox environments provided by partners. The public beta is open to all developers at no extra charge, with users paying only for the models, tokens and tools they use.