Claude Haiku

Overview

This is a model family overview. For version-specific details, see the individual model entries linked below.

Claude Haiku is the speed-and-cost tier in Anthropic’s lineup. It sacrifices some capability depth compared with Sonnet and Opus but delivers significantly faster responses at a fraction of the price. Haiku is the right choice when throughput, latency, or cost matter more than peak reasoning quality.

Current Latest

Claude Haiku 4.5 remains the efficiency-oriented current reference and the current public Haiku model on Anthropic’s model page.

Strengths

• Very fast response times, well suited for real-time applications
• Lowest per-token cost in the Claude family
• Strong coding and computer-use performance for its size and price
• Multimodal support with tool use and structured-output workflows
• Good fit for subagent or parallelized high-volume work

When to Choose Haiku

Choose Haiku when speed or cost is the primary concern:

• High-volume classification, extraction, and routing tasks
• Real-time chat applications where latency matters most
• Coding subagents and multi-agent orchestration where cost matters
• Bulk content processing pipelines
• Cost-sensitive applications that can tolerate occasional quality drops on hard tasks

Access

• Anthropic API as claude-haiku-4-5
• AWS Bedrock
• Google Vertex AI
• Microsoft Foundry
• Claude.ai on web, iOS, and Android
• Claude products and Claude Code