Cracked AI Engineering

GLM 4.5 Air vs Kimi K2 Instruct

GLM 4.5 Air offers 131K tokens context vs 75K tokens, GLM 4.5 Air includes advanced reasoning, GLM 4.5 Air has open weights. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

GLM 4.5 Air

Chutes

131K tokens context • Free

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Kimi K2 Instruct

Chutes

75K tokens context • $0.15 / $0.59 per 1M tokens

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Detailed Comparison

Specification
GLM 4.5 Air
Kimi K2 Instruct
Provider
Chutes
Chutes
Context Window
131K tokens
75K tokens
Max Output Tokens
98K tokens
75K tokens
Input Pricing (per 1M tokens)
Free
$0.15
Output Pricing (per 1M tokens)
Free
$0.59
Release Date
Jul 2025
Aug 2025

Capabilities

Capability
GLM 4.5 Air
Kimi K2 Instruct
Text Generation
Function Calling
Advanced Reasoning

Which Model Should You Choose?

Choose GLM 4.5 Air if:

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

Choose Kimi K2 Instruct if: