Claude Sonnet 4 vs Claude Haiku 3.5
Claude Haiku 3.5 is more cost-effective, Claude Sonnet 4 includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Sonnet 4
Vertex (Anthropic)
200K tokens context • $3.00 / $15.00 per 1M tokens
View full specifications →Claude Haiku 3.5
Vertex (Anthropic)
200K tokens context • $0.80 / $4.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Claude Sonnet 4
Claude Haiku 3.5
Provider
Vertex (Anthropic)
Vertex (Anthropic)
Context Window
200K tokens
200K tokens
Max Output Tokens
64K tokens
8K tokens
Input Pricing (per 1M tokens)
$3.00
$0.80
Output Pricing (per 1M tokens)
$15.00
$4.00
Release Date
May 2025
Oct 2024
Capabilities
Capability
Claude Sonnet 4
Claude Haiku 3.5
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments
Which Model Should You Choose?
Choose Claude Sonnet 4 if:
- • You need advanced reasoning
Choose Claude Haiku 3.5 if:
- • Cost efficiency is a priority