Extended Capabilities Example

This example demonstrates Claude 3.7+'s combined extended capabilities:

• Extended Thinking: Deep reasoning with configurable thinking budget
• Extended Output: Generate up to 128K tokens (vs standard 8K limit)

Features Demonstrated

1. Combined Capabilities: Shows how to use both extended thinking AND extended output together
2. Complex Task: Generates a comprehensive distributed systems guide requiring both deep reasoning and extensive output
3. Token Metrics: Displays detailed token usage including thinking tokens and output tokens

Running the Example

# Set your API key
export ANTHROPIC_API_KEY=your-api-key

# Run the example
go run .

Key Implementation Points

// Enable both capabilities together
opts := []llms.CallOption{
    // Extended thinking for complex reasoning
    llms.WithThinkingMode(llms.ThinkingModeHigh),
    
    // Extended output for up to 128K tokens
    anthropic.WithExtendedOutput(),
    
    // Set high token limit
    llms.WithMaxTokens(50000),
}

What to Expect

• The model will use extended thinking to reason about the complex distributed systems topic
• It will generate a comprehensive guide that may exceed standard token limits
• Token metrics will show both thinking tokens used and total output generated
• If the response is large (>10K chars), you'll have the option to save it to a file

Requirements

• Claude 3.7 Sonnet model (claude-3-7-sonnet-20250219)
• Valid Anthropic API key with access to Claude 3.7
• Both extended thinking and extended output features enabled on your account