Cracked AI Engineering

o3 vs GPT-4.1 nano

GPT-4.1 nano offers 1.0M tokens context vs 200K tokens, GPT-4.1 nano is more cost-effective, o3 includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

o3

Azure

200K tokens context • $2.00 / $8.00 per 1M tokens

View full specifications →

GPT-4.1 nano

Azure

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

View full specifications →

Detailed Comparison

Specification
o3
GPT-4.1 nano
Provider
Azure
Azure
Context Window
200K tokens
1.0M tokens
Max Output Tokens
100K tokens
33K tokens
Input Pricing (per 1M tokens)
$2.00
$0.10
Output Pricing (per 1M tokens)
$8.00
$0.40
Release Date
Apr 2025
Apr 2025

Capabilities

Capability
o3
GPT-4.1 nano
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose o3 if:

  • • You need advanced reasoning

Choose GPT-4.1 nano if:

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