Quick Start

dependencies:
  dartantic_ai: ^VERSION

# Native providers
export OPENAI_API_KEY="sk-..."
export ANTHROPIC_API_KEY="sk-ant-..."
export GEMINI_API_KEY="..."
export MISTRAL_API_KEY="..."

# OpenAI-compatible
export OPENROUTER_API_KEY="..."
export TOGETHER_API_KEY="..."
export COHERE_API_KEY="..."
export XAI_API_KEY="..."

# Ollama runs locally - no key needed
# OpenAI Responses reuses OPENAI_API_KEY

void main() async {
  // Create an agent with a model string
  final agent = Agent(
    'openai',  // Try 'openai:gpt-4o' or 'gemini:gemini-2.0-flash'
  );

  // Run the agent with a prompt and system message
  final result = await agent.send(
    'Where does "hello world" come from?',
    history: [
      const ChatMessage.system('Be concise, reply with one sentence.'),
    ],
  );
  print(result.output); // Output: one sentence on the origin of "hello world"
}

void main() async {
  // Create an agent with a provider
  final agent = Agent.forProvider(
    Agent.createProvider('openai'),
  );

  // Run the agent with a prompt and system message
  final result = await agent.send(
    'Where does "hello world" come from?',
    history: [
      const ChatMessage.system('Be concise, reply with one sentence.'),
    ],
  );
  print(result.output); // Output: one sentence on the origin of "hello world"
}