GPT-5-Codex vs GPT-4
GPT-5-Codex offers 400K tokens context vs 8K tokens, GPT-5-Codex includes advanced reasoning, GPT-5-Codex supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Detailed Comparison
Specification
GPT-5-Codex
GPT-4
Provider
Azure
Azure
Context Window
400K tokens
8K tokens
Max Output Tokens
128K tokens
8K tokens
Input Pricing (per 1M tokens)
N/A
$60.00
Output Pricing (per 1M tokens)
N/A
$120.00
Release Date
Sep 2025
Mar 2023
Capabilities
Capability
GPT-5-Codex
GPT-4
Text Generation
Vision
Function Calling
Advanced Reasoning
Which Model Should You Choose?
Choose GPT-5-Codex if:
- • You need a larger context window
- • You need advanced reasoning