Claude Sonnet 3.5 v2 vs Claude Opus 4.1 (latest)
Claude Sonnet 3.5 v2 is more cost-effective, Claude Opus 4.1 (latest) includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Sonnet 3.5 v2
Anthropic
200K tokens context • $3.00 / $15.00 per 1M tokens
View full specifications →Claude Opus 4.1 (latest)
Anthropic
200K tokens context • $15.00 / $75.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Claude Sonnet 3.5 v2
Claude Opus 4.1 (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
Oct 2024
Aug 2025
Capabilities
Capability
Claude Sonnet 3.5 v2
Claude Opus 4.1 (latest)
Text Generation
Vision
Function Calling
File Attachments
Advanced Reasoning
Which Model Should You Choose?
Choose Claude Sonnet 3.5 v2 if:
- • Cost efficiency is a priority
Choose Claude Opus 4.1 (latest) if:
- • You need advanced reasoning