Grok 2 vs Grok 3 Fast
Grok 2 is more cost-effective. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Detailed Comparison
Specification
Grok 2
Grok 3 Fast
Provider
xAI
xAI
Context Window
131K tokens
131K tokens
Max Output Tokens
8K tokens
8K tokens
Input Pricing (per 1M tokens)
$2.00
$5.00
Output Pricing (per 1M tokens)
$10.00
$25.00
Release Date
Aug 2024
Feb 2025
Capabilities
Capability
Grok 2
Grok 3 Fast
Text Generation
Function Calling
Which Model Should You Choose?
Choose Grok 2 if:
- • Cost efficiency is a priority