How to Switch Between Claude Models

Claude offers multiple AI models optimized for different tasks and performance needs. Switching between models lets you balance speed, cost, and capability based on your specific requirements.

1. Access the model selector on Claude.ai. Open Claude.ai in your web browser and start a new conversation. Look for the model dropdown menu at the top of the chat interface, typically displaying the current model name like "Claude 3.5 Sonnet."
2. Choose your desired model. Click the model dropdown to see available options. Select Claude 3.5 Sonnet for balanced performance, Claude 3 Haiku for speed and cost efficiency, or Claude 3 Opus for maximum capability on complex tasks.
3. Switch models via API calls. For API usage, specify the model in your request body using the "model" parameter. Use "claude-3-5-sonnet-20241022" for Sonnet, "claude-3-haiku-20240307" for Haiku, or "claude-3-opus-20240229" for Opus.
4. Verify the active model. Confirm your model selection by checking the interface header or API response. The active model name should display clearly, and API responses will include the model identifier in the response metadata.
5. Adjust based on task requirements. Use Haiku for simple tasks like data extraction or quick questions to minimize costs. Choose Sonnet for general-purpose work requiring good reasoning. Select Opus for complex analysis, creative writing, or tasks requiring maximum accuracy.