Cracked AI Engineering

GPT-5 Mini vs Grok 4

GPT-5 Mini offers 400K tokens context vs 256K tokens, GPT-5 Mini is more cost-effective, GPT-5 Mini supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

GPT-5 Mini

FastRouter

400K tokens context • $0.25 / $2.00 per 1M tokens

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Grok 4

FastRouter

256K tokens context • $3.00 / $15.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
GPT-5 Mini
Grok 4
Provider
FastRouter
FastRouter
Context Window
400K tokens
256K tokens
Max Output Tokens
128K tokens
64K tokens
Input Pricing (per 1M tokens)
$0.25
$3.00
Output Pricing (per 1M tokens)
$2.00
$15.00
Release Date
Aug 2025
Jul 2025

Capabilities

Capability
GPT-5 Mini
Grok 4
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose GPT-5 Mini if:

  • • You need a larger context window
  • • Cost efficiency is a priority

Choose Grok 4 if: