Vercel AI SDK
Streaming UX, tool calls, structured output.
6 patterns supported.
Patterns this framework supports natively
- Streaming Typed Events — Push partial results to the client as typed events as they become available, rather than waiting for the full response.
- Tool Use — Let the LLM produce typed calls against an external toolkit instead of producing free-form text the surrounding system has to parse.
- Structured Output — Constrain the model's output to conform to a JSON Schema (or similar typed shape).
- Stop / Cancel — Let the user interrupt an in-flight agent run cleanly, releasing resources and surfacing partial state.
- Citation Streaming — Stream citations alongside generated text so the UI can render source links in place as content appears.
- Parallel Tool Calls — Allow the model to emit several independent tool calls in one assistant turn; the host executes them in parallel.