Cracked AI Engineering

Grok Beta vs Grok 3 Fast

Compare Grok Beta by xAI and Grok 3 Fast by xAI. See detailed specifications, pricing, and capabilities side-by-side.

Quick Overview

Grok Beta

xAI

131K tokens context • $5.00 / $15.00 per 1M tokens

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Grok 3 Fast

xAI

131K tokens context • $5.00 / $25.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
Grok Beta
Grok 3 Fast
Provider
xAI
xAI
Context Window
131K tokens
131K tokens
Max Output Tokens
4K tokens
8K tokens
Input Pricing (per 1M tokens)
$5.00
$5.00
Output Pricing (per 1M tokens)
$15.00
$25.00
Release Date
Nov 2024
Feb 2025

Capabilities

Capability
Grok Beta
Grok 3 Fast
Text Generation
Function Calling

Which Model Should You Choose?

Choose Grok Beta if:

    Choose Grok 3 Fast if: