GLM 4.5 Air vs Grok 4 Fast None Reasoning
Grok 4 Fast None Reasoning offers 2.0M tokens context vs 128K tokens, GLM 4.5 Air includes advanced reasoning, Grok 4 Fast None Reasoning supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Grok 4 Fast None Reasoning
ZenMux
2.0M tokens context • $0.20 / $0.50 per 1M tokens
View full specifications →Detailed Comparison
Specification
GLM 4.5 Air
Grok 4 Fast None Reasoning
Provider
ZenMux
ZenMux
Context Window
128K tokens
2.0M tokens
Max Output Tokens
96K tokens
30K tokens
Input Pricing (per 1M tokens)
$0.11
$0.20
Output Pricing (per 1M tokens)
$0.56
$0.50
Release Date
Jul 2025
Sep 2025
Capabilities
Capability
GLM 4.5 Air
Grok 4 Fast None Reasoning
Text Generation
Function Calling
Advanced Reasoning
Vision
File Attachments
Which Model Should You Choose?
Choose GLM 4.5 Air if:
- • Cost efficiency is a priority
- • You need advanced reasoning
- • You prefer open weights
Choose Grok 4 Fast None Reasoning if:
- • You need a larger context window