With ChatGPT apps and full MCP access rolling into workspace plans, the issue shifts from connectivity to governance: permissions, write actions, OAuth, review, and rollout.
OpenAI's current FAQ, migration guide, feature rollout, and pricing all put the Responses API at the center. For businesses running internal AI helpers on older assistant patterns, that turns legacy threads, tools, retrieval, and cost assumptions into a concrete migration project with operational and budget impact.