Cracked AI Engineering

GPT-5-Codex vs GPT-4.1 nano

Looking for a powerful AI model for your projects? GPT-5 Codex offers a massive context window of 400,000 tokens and advanced reasoning capabilities, making it perfect for developers needing cutting-edge AI solutions. While GPT-4.1 nano boasts a larger context size of over 1 million tokens, its lower pricing of $0.1/M input and $0.4/M output tokens makes it a cost-effective choice for projects requiring natural language processing and vision tasks. Choose GPT-5 Codex for advanced reasoning applications and GPT-4.1 nano for cost-effective projects with larger text inputs.

Quick Overview

GPT-5-Codex

AIHubMix

400K tokens context • Pricing not available

View full specifications →

GPT-4.1 nano

AIHubMix

1.0M tokens context • $0.10 / $0.40 per 1M tokens

View full specifications →

Detailed Comparison

Specification
GPT-5-Codex
GPT-4.1 nano
Provider
AIHubMix
AIHubMix
Context Window
400K tokens
1.0M tokens
Max Output Tokens
128K tokens
33K tokens
Input Pricing (per 1M tokens)
N/A
$0.10
Output Pricing (per 1M tokens)
N/A
$0.40
Release Date
Sep 2025
Apr 2025

Capabilities

Capability
GPT-5-Codex
GPT-4.1 nano
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose GPT-5-Codex if:

  • • You need advanced reasoning

Choose GPT-4.1 nano if:

  • • You need a larger context window