ai_sdk_dart 2.0.0

Core AI SDK for Dart with provider-agnostic model APIs.

example/example.md

ai_sdk_dart examples

In this directory

example.dart

A self-contained runnable example covering every core API — no API key or network connection required. Uses minimal in-memory fake models so you can run it instantly:

dart run example/example.dart

Demonstrates:

Section	API
Text generation	generateText — text, finishReason, usage, steps
Streaming	streamText — live token-by-token output
Structured output	Output.object with a typed JSON schema
Tool use (multi-step)	tool<INPUT, OUTPUT> + maxSteps agent loop
Embeddings	embed + cosineSimilarity
Middleware	wrapLanguageModel + extractReasoningMiddleware

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Runnable example apps

The repository contains three full example apps.

1. Dart CLI — examples/basic

A pure-Dart command-line program that exercises the full SDK against real providers.

OPENAI_API_KEY=sk-... make run-basic

Covers: generateText, streamText, structured output (Output.object / array / choice / json), type-safe tools, multi-step agent loops, embed + cosineSimilarity, and the middleware system.

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2. Flutter chat app — examples/flutter_chat

A Material 3 Flutter app showcasing all three ai_sdk_flutter_ui controllers.

cd examples/flutter_chat && fvm flutter run --dart-define=OPENAI_API_KEY=sk-...
# or: make run / make run-web

Screen	Controller
Multi-turn streaming chat	ChatController
Single-turn completion with presets	CompletionController
Live structured JSON stream	ObjectStreamController

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3. Advanced app — examples/advanced_app

A comprehensive Flutter demo of every SDK feature across all three providers.

cd examples/advanced_app && fvm flutter run \
  --dart-define=OPENAI_API_KEY=sk-... \
  --dart-define=ANTHROPIC_API_KEY=sk-ant-... \
  --dart-define=GOOGLE_API_KEY=AIza...
# or: make run-advanced / make run-advanced-web

Feature	Provider
Provider switcher (OpenAI / Anthropic / Google)	All
Tools chat (weather + calculator)	OpenAI
Image generation (DALL-E 3)	OpenAI
Multimodal (image + text input)	OpenAI
Embeddings + cosine similarity	OpenAI / Google
Text-to-speech	OpenAI
Speech-to-text	OpenAI
Completion	OpenAI
Object stream	OpenAI