GPT-5 vs Claude Opus 4.1

Head-to-head comparison of AI coding capabilities

View on GitHub

https://github.com/with-logic/gpt-5-vs-opus-4-1-coding-examples

Why This Comparison?

At Logic, our team starts every feature in Claude Code. Over the past 30 days, more than 85% of our code has been written by Claude. We've found incredible success with agentic coding, so naturally we were excited to compare how GPT-5 might improve upon the success we've already been having.

Each example below was generated using identical prompts given to both OpenAI's GPT-5 and Anthropic's Claude Opus 4.1. All applications were created in a single prompt without manual editing, showcasing the raw capabilities of each model.

Click on any example to view the implementations and compare their approaches to the same challenge.

Logic, Inc.
Artisan CSA

Artisan CSA

landing
Audio Step Sequencer

Audio Step Sequencer

app
Bay AreaEspresso Lab

Bay AreaEspresso Lab

landing
Brutalist Dev Platform

Brutalist Dev Platform

landing
Camping Gear Checklist

Camping Gear Checklist

utility
Cloud Painter for Kids

Cloud Painter for Kids

interactive
Color Match Challenge

Color Match Challenge

game
Company Acronym List

Company Acronym List

utility
Customer Case Study

Customer Case Study

landing
Customer Journey Flow

Customer Journey Flow

tool
Employee Skills Matrix

Employee Skills Matrix

utility
Equation Solver Tool

Equation Solver Tool

tool
Escape the Maze

Escape the Maze

game
Esports Tournament

Esports Tournament

landing
Event Countdown

Event Countdown

utility
Event Feedback Dashboard

Event Feedback Dashboard

app
Falling Fruit Catcher

Falling Fruit Catcher

game
Farewell Message Board

Farewell Message Board

app
Festival Lights Show

Festival Lights Show

interactive
Healthy Meal Tracker

Healthy Meal Tracker

app
Holiday Card for Kids

Holiday Card for Kids

interactive
Interactive World Clock

Interactive World Clock

utility
Kinetic Typography Studio

Kinetic Typography Studio

app
Language Learning Flashcards

Language Learning Flashcards

app
Markdown → Slides

Markdown → Slides

tool
Math Practice Drills

Math Practice Drills

app
Micro Habit Tracker

Micro Habit Tracker

app
Music Theory Trainer

Music Theory Trainer

app
Nonprofit Impact Report

Nonprofit Impact Report

landing
Ocean Wave Simulation

Ocean Wave Simulation

interactive
Online Academy

Online Academy

landing
Online Poll Board

Online Poll Board

app
Online Whiteboard

Online Whiteboard

tool
OpenAI.fm Inspired

OpenAI.fm Inspired

landing
QR Code Generator

QR Code Generator

tool
Smartwatch Product

Smartwatch Product

landing
Solar System Explorer

Solar System Explorer

interactive
Target Clicker

Target Clicker

game
Tea Dunkability Simulator

Tea Dunkability Simulator

interactive
Virtual Drum Kit

Virtual Drum Kit

interactive
Weather Theatre

Weather Theatre

interactive
Webcam Filter Playground

Webcam Filter Playground

interactive