Claude Haiku 3.5 vs Claude Opus 4.1
Claude Haiku 3.5 is more cost-effective, Claude Opus 4.1 includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Haiku 3.5
OpenCode Zen
200K tokens context • $0.80 / $4.00 per 1M tokens
View full specifications →Claude Opus 4.1
OpenCode Zen
200K tokens context • $15.00 / $75.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Claude Haiku 3.5
Claude Opus 4.1
Provider
OpenCode Zen
OpenCode Zen
Context Window
200K tokens
200K tokens
Max Output Tokens
8K tokens
32K tokens
Input Pricing (per 1M tokens)
$0.80
$15.00
Output Pricing (per 1M tokens)
$4.00
$75.00
Release Date
Oct 2024
Aug 2025
Capabilities
Capability
Claude Haiku 3.5
Claude Opus 4.1
Text Generation
Vision
Function Calling
File Attachments
Advanced Reasoning
Which Model Should You Choose?
Choose Claude Haiku 3.5 if:
- • Cost efficiency is a priority
Choose Claude Opus 4.1 if:
- • You need advanced reasoning