Claude 3.5 Haiku is Anthropic's speed-optimised model, delivering intelligence comparable to the previous Claude 3 Sonnet at a fraction of the cost. It is the fastest model in the Claude 3.5 family and a strong choice for high-throughput applications requiring quality responses.
Key capabilities
- Low latency — among the fastest responses in the Claude family
- 200K context window — matches the flagship model
- Vision support — processes images alongside text
- Function calling — reliable for tool use and structured output
What it's best for
Real-time applications, customer-facing chatbots, content moderation pipelines, and any use case requiring many fast API calls with good quality outputs.