Grok 4 Fast (Non-Reasoning) vs Grok 4
Looking for AI models with different strengths? Grok 4 Fast (Non-Reasoning) excels in handling a 2,000,000 token context window and is perfect for data-intensive projects with text, vision, and function calling tasks. On the other hand, Grok 4 focuses on advanced reasoning and deep understanding with a 256,000 token context window, making it ideal for text input tasks. Choose Grok 4 Fast for complex, multi-task projects, while Grok 4 is better suited for in-depth text analysis and reasoning.
Quick Overview
Grok 4 Fast (Non-Reasoning)
xAI
2.0M tokens context • $0.20 / $0.50 per 1M tokens
View full specifications →Detailed Comparison
Specification
Grok 4 Fast (Non-Reasoning)
Grok 4
Provider
xAI
xAI
Context Window
2.0M tokens
256K tokens
Max Output Tokens
30K tokens
64K tokens
Input Pricing (per 1M tokens)
$0.20
$3.00
Output Pricing (per 1M tokens)
$0.50
$15.00
Release Date
Sep 2025
Jul 2025
Capabilities
Capability
Grok 4 Fast (Non-Reasoning)
Grok 4
Text Generation
Vision
Function Calling
File Attachments
Advanced Reasoning
Which Model Should You Choose?
Choose Grok 4 Fast (Non-Reasoning) if:
- • You need a larger context window
- • Cost efficiency is a priority
Choose Grok 4 if:
- • You need advanced reasoning