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

Vercel AI Gateway

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
Vercel AI Gateway
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