Model is constrained to always predicting a function call only.
If "allowed_function_names" are set, the predicted function call will be
limited to any one of "allowed_function_names", else the predicted
function call will be any one of the provided "function_declarations".
Auto
Default model behavior, model decides to predict either a function call
or a natural language response.
None
Model will not predict any function call. Model behavior is same as when
not passing any function declarations.
Unspecified
Unspecified function calling mode. This value should not be used.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-20 UTC."],[[["\u003cp\u003eThis webpage provides reference documentation for the \u003ccode\u003eFunctionCallingConfig.Types.Mode\u003c/code\u003e enum within the Vertex AI v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eFunctionCallingConfig.Types.Mode\u003c/code\u003e enum defines different modes for how a model handles function calling, including \u003ccode\u003eAny\u003c/code\u003e, \u003ccode\u003eAuto\u003c/code\u003e, \u003ccode\u003eNone\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThere are multiple versions of the documentation available, ranging from version 1.0.0 to the latest version, 3.22.0, accessible through the provided links.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAny\u003c/code\u003e mode constrains the model to predict only function calls, whereas \u003ccode\u003eAuto\u003c/code\u003e allows it to decide between a function call or a natural language response, and \u003ccode\u003eNone\u003c/code\u003e prevents it from making any function calls.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUnspecified\u003c/code\u003e function calling mode is a value that should not be used.\u003c/p\u003e\n"]]],[],null,[]]
