GPT-5 vs Kimi K2 Instruct 0905
GPT-5 offers 400K tokens context vs 262K tokens, Kimi K2 Instruct 0905 is more cost-effective, GPT-5 includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Kimi K2 Instruct 0905
OpenRouter
262K tokens context • $0.60 / $2.50 per 1M tokens
View full specifications →Detailed Comparison
Specification
GPT-5
Kimi K2 Instruct 0905
Provider
OpenRouter
OpenRouter
Context Window
400K tokens
262K tokens
Max Output Tokens
128K tokens
16K tokens
Input Pricing (per 1M tokens)
$1.25
$0.60
Output Pricing (per 1M tokens)
$10.00
$2.50
Release Date
Aug 2025
Sep 2025
Capabilities
Capability
GPT-5
Kimi K2 Instruct 0905
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments
Which Model Should You Choose?
Choose GPT-5 if:
- • You need a larger context window
- • You need advanced reasoning
Choose Kimi K2 Instruct 0905 if:
- • Cost efficiency is a priority
- • You prefer open weights