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Does Vertex AI have Function Calling?
YES
Function calling in Gemini and agent tool use.
Does Vertex AI have Function Calling?
Vertex AI supports Function Calling. Developers can define custom tools/functions that the AI can choose to invoke, returning structured JSON arguments to execute actions. Vertex AI (marketed as Gemini Enterprise Agent Platform) is Google Cloud’s platform: Model Garden (Gemini, Claude, Gemma), Agent Studio, tuning, Vector Search, notebooks, and MLOps. Function calling in Gemini and agent tool use.
- Tool
- 🔺 Vertex AI by Google
- Feature
- Function Calling · Developer
- Status
- Yes, requires plus plan
- Notes
- Function calling in Gemini and agent tool use.
- Pricing
- Requires Plus plan.
- Source
- cloud.google.com
- Last verified
- 2026-09-02