Claude Haiku 4.5
Anthropic · Claude 4
Fast and efficient Claude tier for latency-sensitive assistant and automation workloads.
Overview
Freshness note: Model capabilities, limits, and pricing can change quickly. This profile is a point-in-time snapshot last verified on February 15, 2026.
Claude Haiku 4.5 is the speed-and-efficiency tier in the Claude 4 family for high-throughput workloads. It is useful for teams optimizing latency and cost while retaining stronger quality than minimal baseline models.
Capabilities
Haiku-class behavior is typically strongest in concise summarization, extraction, routing, and everyday assistant tasks. It can support customer-facing and internal operational flows that require quick response cycles.
Technical Details
Haiku 4.5 is designed for throughput-oriented workloads where deterministic output structure and response speed matter. It is best used with explicit format constraints and robust post-validation for critical outputs.
Pricing & Access
Accessible through Anthropic API channels and partner integrations, depending on account tier and region. Verify pricing and quota details directly from current Anthropic documentation.
Best Use Cases
Best for support summarization, ticket routing, knowledge normalization, and lightweight coding or documentation workflows where cost and speed dominate.
Comparisons
Compared with Claude Sonnet 4.5, Haiku 4.5 usually offers better cost/latency with lower ceiling on complex reasoning. Compared with GPT-5 nano, selection depends on ecosystem and output-style fit. Compared with Gemini 2.5 Flash-Lite, both target efficient production use with different platform tradeoffs.