GPT-5 Mini vs Kimi K2 Instruct
GPT-5 Mini offers 400K tokens context vs 131K tokens, GPT-5 Mini is more cost-effective, GPT-5 Mini includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
GPT-5 Mini
Vercel AI Gateway
400K tokens context • $0.25 / $2.00 per 1M tokens
View full specifications →Kimi K2 Instruct
Vercel AI Gateway
131K tokens context • $1.00 / $3.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
GPT-5 Mini
Kimi K2 Instruct
Provider
Vercel AI Gateway
Vercel AI Gateway
Context Window
400K tokens
131K tokens
Max Output Tokens
128K tokens
16K tokens
Input Pricing (per 1M tokens)
$0.25
$1.00
Output Pricing (per 1M tokens)
$2.00
$3.00
Release Date
Aug 2025
Jul 2025
Capabilities
Capability
GPT-5 Mini
Kimi K2 Instruct
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments
Which Model Should You Choose?
Choose GPT-5 Mini if:
- • You need a larger context window
- • Cost efficiency is a priority
- • You need advanced reasoning
Choose Kimi K2 Instruct if:
- • You prefer open weights