Claude Sonnet 4.5 vs Kimi K2 Thinking Turbo
Kimi K2 Thinking Turbo offers 262K tokens context vs 200K tokens, Kimi K2 Thinking Turbo is more cost-effective, Claude Sonnet 4.5 supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Sonnet 4.5
Vercel AI Gateway
200K tokens context • $3.00 / $15.00 per 1M tokens
View full specifications →Kimi K2 Thinking Turbo
Moonshot AI (China)
262K tokens context • $1.15 / $8.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Claude Sonnet 4.5
Kimi K2 Thinking Turbo
Provider
Vercel AI Gateway
Moonshot AI (China)
Context Window
200K tokens
262K tokens
Max Output Tokens
64K tokens
262K tokens
Input Pricing (per 1M tokens)
$3.00
$1.15
Output Pricing (per 1M tokens)
$15.00
$8.00
Release Date
Sep 2025
Nov 2025
Capabilities
Capability
Claude Sonnet 4.5
Kimi K2 Thinking Turbo
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments
Which Model Should You Choose?
Choose Claude Sonnet 4.5 if:
Choose Kimi K2 Thinking Turbo if:
- • You need a larger context window
- • Cost efficiency is a priority
- • You prefer open weights