Cracked AI Engineering

o4 Mini vs Kimi K2 Thinking Turbo

Kimi K2 Thinking Turbo offers 262K tokens context vs 200K tokens, o4 Mini supports vision, Kimi K2 Thinking Turbo has open weights. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

o4 Mini

Requesty

200K tokens context • $1.10 / $4.40 per 1M tokens

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Kimi K2 Thinking Turbo

Moonshot AI (China)

262K tokens context • $1.15 / $8.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
o4 Mini
Kimi K2 Thinking Turbo
Provider
Requesty
Moonshot AI (China)
Context Window
200K tokens
262K tokens
Max Output Tokens
100K tokens
262K tokens
Input Pricing (per 1M tokens)
$1.10
$1.15
Output Pricing (per 1M tokens)
$4.40
$8.00
Release Date
Apr 2025
Nov 2025

Capabilities

Capability
o4 Mini
Kimi K2 Thinking Turbo
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose o4 Mini if:

  • • Cost efficiency is a priority

Choose Kimi K2 Thinking Turbo if:

  • • You need a larger context window
  • • You prefer open weights