Kimi K2 Instruct vs Claude 4.5 Sonnet
Claude 4.5 Sonnet offers 200K tokens context vs 131K tokens, Kimi K2 Instruct is more cost-effective, Claude 4.5 Sonnet includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude 4.5 Sonnet
Cortecs
200K tokens context • $3.26 / $16.30 per 1M tokens
View full specifications →Detailed Comparison
Specification
Kimi K2 Instruct
Claude 4.5 Sonnet
Provider
Cortecs
Cortecs
Context Window
131K tokens
200K tokens
Max Output Tokens
131K tokens
200K tokens
Input Pricing (per 1M tokens)
$0.55
$3.26
Output Pricing (per 1M tokens)
$2.65
$16.30
Release Date
Jul 2025
Sep 2025
Capabilities
Capability
Kimi K2 Instruct
Claude 4.5 Sonnet
Text Generation
Function Calling
Vision
Advanced Reasoning
File Attachments
Which Model Should You Choose?
Choose Kimi K2 Instruct if:
- • Cost efficiency is a priority
- • You prefer open weights
Choose Claude 4.5 Sonnet if:
- • You need a larger context window
- • You need advanced reasoning