You can now update the tools in an existing session in the Agents API public beta. Updates replace the full tool list. Function tools and MCP servers change on the next model call; built-in tools change by the next turn. Context compaction now runs in the background by default. Set compaction.async to false for blocking compaction.
OpenAI is an American artificial intelligence (AI) public benefit corporation (PBC) headquartered in San Francisco, California. It develops proprietary generative AI models, particularly its generative pre-trained transformer (GPT) series of large language models.