GPT-4.1 vs Kimi K2
GPT-4.1 offers 1.0M tokens context vs 131K tokens, Kimi K2 is more cost-effective, GPT-4.1 supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Detailed Comparison
Specification
GPT-4.1
Kimi K2
Provider
FastRouter
FastRouter
Context Window
1.0M tokens
131K tokens
Max Output Tokens
33K tokens
33K tokens
Input Pricing (per 1M tokens)
$2.00
$0.55
Output Pricing (per 1M tokens)
$8.00
$2.20
Release Date
Apr 2025
Jul 2025
Capabilities
Capability
GPT-4.1
Kimi K2
Text Generation
Vision
Function Calling
File Attachments
Which Model Should You Choose?
Choose GPT-4.1 if:
- • You need a larger context window
Choose Kimi K2 if:
- • Cost efficiency is a priority
- • You prefer open weights