Cracked AI Engineering

Gemini 2.5 Pro vs Kimi K2

Gemini 2.5 Pro offers 1.0M tokens context vs 131K tokens, Kimi K2 is more cost-effective, Gemini 2.5 Pro includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Gemini 2.5 Pro

OpenRouter

1.0M tokens context • $1.25 / $10.00 per 1M tokens

View full specifications →

Kimi K2

OpenRouter

131K tokens context • $0.55 / $2.20 per 1M tokens

View full specifications →

Detailed Comparison

Specification
Gemini 2.5 Pro
Kimi K2
Provider
OpenRouter
OpenRouter
Context Window
1.0M tokens
131K tokens
Max Output Tokens
66K tokens
33K tokens
Input Pricing (per 1M tokens)
$1.25
$0.55
Output Pricing (per 1M tokens)
$10.00
$2.20
Release Date
Mar 2025
Jul 2025

Capabilities

Capability
Gemini 2.5 Pro
Kimi K2
Text Generation
Vision
Audio Input
Video Understanding
PDF Processing
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose Gemini 2.5 Pro if:

  • • You need a larger context window
  • • You need advanced reasoning

Choose Kimi K2 if:

  • • Cost efficiency is a priority
  • • You prefer open weights