Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications.
Input
Output
Context
200K
Max Output
64K
Parameters
—
Technical Specifications
Model TypeChat
Context Window200K
Max Output Tokens64K
Parameters—
Training Cutoff2025-02-01
Licenseproprietary
Capabilities
Input Modalities
imagetext
Output Modalities
text
Features
computer_useextended_thinkingfunction_callingjson_modepdf_readingreasoningstreamingsystem_promptstext_generationtool_usevision
Resources & Links
proprietary — Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
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