Evidence-backed facts
- The Responses API creates model output through POST /responses, while official SDKs expose the corresponding responses.create operation with a selected model and input. informative
- A Responses create request can attach built-in tools, MCP tools, and custom function calls, with tool_choice controlling how the model selects them. informative
- Documentation of a tool type does not prove that Plato's Kallipolis has authenticated, invoked, or passed conformance tests against that tool. informative