Cracked AI Engineering

Gemini 2.5 Flash vs Kimi K2

Gemini 2.5 Flash offers 1.0M tokens context vs 131K tokens, Gemini 2.5 Flash includes advanced reasoning, Gemini 2.5 Flash supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Gemini 2.5 Flash

FastRouter

1.0M tokens context • $0.30 / $2.50 per 1M tokens

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Kimi K2

FastRouter

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

View full specifications →

Detailed Comparison

Specification
Gemini 2.5 Flash
Kimi K2
Provider
FastRouter
FastRouter
Context Window
1.0M tokens
131K tokens
Max Output Tokens
66K tokens
33K tokens
Input Pricing (per 1M tokens)
$0.30
$0.55
Output Pricing (per 1M tokens)
$2.50
$2.20
Release Date
Jun 2025
Jul 2025

Capabilities

Capability
Gemini 2.5 Flash
Kimi K2
Text Generation
Vision
PDF Processing
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose Gemini 2.5 Flash if:

  • • You need a larger context window
  • • Cost efficiency is a priority
  • • You need advanced reasoning

Choose Kimi K2 if:

  • • You prefer open weights