Cracked AI Engineering

Kimi K2 0905 vs Grok 4

Kimi K2 0905 is more cost-effective, Grok 4 includes advanced reasoning, Grok 4 supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Kimi K2 0905

ZenMux

262K tokens context • $0.60 / $2.50 per 1M tokens

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Grok 4

ZenMux

256K tokens context • $3.00 / $15.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
Kimi K2 0905
Grok 4
Provider
ZenMux
ZenMux
Context Window
262K tokens
256K tokens
Max Output Tokens
16K tokens
256K tokens
Input Pricing (per 1M tokens)
$0.60
$3.00
Output Pricing (per 1M tokens)
$2.50
$15.00
Release Date
Sep 2025
Jul 2025

Capabilities

Capability
Kimi K2 0905
Grok 4
Text Generation
Function Calling
Vision
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose Kimi K2 0905 if:

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

Choose Grok 4 if:

  • • You need advanced reasoning