Claude Sonnet 3.5 vs Claude Opus 4 (latest)
Claude Sonnet 3.5 is more cost-effective, Claude Opus 4 (latest) includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Sonnet 3.5
Anthropic
200K tokens context • $3.00 / $15.00 per 1M tokens
View full specifications →Claude Opus 4 (latest)
Anthropic
200K tokens context • $15.00 / $75.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Claude Sonnet 3.5
Claude Opus 4 (latest)
Provider
Anthropic
Anthropic
Context Window
200K tokens
200K tokens
Max Output Tokens
8K tokens
32K tokens
Input Pricing (per 1M tokens)
$3.00
$15.00
Output Pricing (per 1M tokens)
$15.00
$75.00
Release Date
Jun 2024
May 2025
Capabilities
Capability
Claude Sonnet 3.5
Claude Opus 4 (latest)
Text Generation
Vision
Function Calling
File Attachments
Advanced Reasoning
Which Model Should You Choose?
Choose Claude Sonnet 3.5 if:
- • Cost efficiency is a priority
Choose Claude Opus 4 (latest) if:
- • You need advanced reasoning