Anthropic: Claude Haiku 4.5

Image input Text input Text output Unavailable
Author's Description

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. It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.

Key Specifications
Cost
$$$$$
Context
200K
Released
Oct 14, 2025
Supported Parameters

This model supports the following parameters:

Include Reasoning Stop Max Tokens Tool Choice Reasoning Temperature Tools
Features

This model supports the following features:

Reasoning Tools
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $1
Completion $5

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
Anthropic
Anthropic | anthropic/claude-4.5-haiku-20251001 200K $1 / 1M tokens $5 / 1M tokens
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