OpenAI Responses API Now Equipped with Computer Environments: Agents Can Run Services, Call APIs, Generate Artifacts Autonomously
OpenAI·high signal
OpenAI equipped the Responses API with full computer environments, letting agents run services, query external APIs, and produce artifacts like spreadsheets or reports within a single API call. The phase parameter labels assistant messages as intermediate commentary vs. final answer, enabling clean multi-step reasoning traces. The Assistants API is now deprecated and will shut down August 26, 2026 — migration to the Responses API is mandatory for all agentic workflows.