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Claude Haiku 4.5 Model Specs, Costs & Benchmarks (October 2025)

Claude Haiku 4.5, developed by Anthropic, features a context window of 200K tokens. The model costs $1.00 per million tokens for input and $5.00 per million tokens for output. It was released on October 15, 2025, and has achieved impressive scores in various benchmarks.
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Overview

Claude Haiku 4.5Claude Haiku 4.5
Model Provider
The organization behind this AI's development
Anthropic logoAnthropic
Input Context Window
Maximum input tokens this model can process at once
200K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
64K
tokens
Release Date
When this model first became publicly available
October 15th, 2025

Pricing

Claude Haiku 4.5Claude Haiku 4.5
Input Token Cost
Cost per million input tokens
$1.00
per million tokens
Output Token Cost
Cost per million output tokens
$5.00
per million tokens

Capabilities & Features

Claude Haiku 4.5Claude Haiku 4.5
Input Types
Supported input formats
imagetext
Output Types
Supported output formats
text
Tokenizer
Text encoding system
Claude
Key Features
Advanced capabilities
✓ Function Calling✓ Reasoning Mode✓ Content Moderation

Benchmarks

Claude Haiku 4.5Claude Haiku 4.5
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Not available
MMMU
Measures understanding of combined text and images across various domains
Not available
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Not available

Compare This Model

See how Claude Haiku 4.5 compares with other top models