R1 0528 (free) vs Kimi K2
R1 0528 (free) is more cost-effective, R1 0528 (free) includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Detailed Comparison
Specification
R1 0528 (free)
Kimi K2
Provider
OpenRouter
OpenRouter
Context Window
164K tokens
131K tokens
Max Output Tokens
164K tokens
33K tokens
Input Pricing (per 1M tokens)
Free
$0.55
Output Pricing (per 1M tokens)
Free
$2.20
Release Date
May 2025
Jul 2025
Capabilities
Capability
R1 0528 (free)
Kimi K2
Text Generation
Function Calling
Advanced Reasoning
Which Model Should You Choose?
Choose R1 0528 (free) if:
- • You need a larger context window
- • Cost efficiency is a priority
- • You need advanced reasoning