Codex by OpenAI
AI that writes code for you
Github Copilot
Your AI pair programmer
Updated February 2026
| Codex by OpenAI | Github Copilot | |
|---|---|---|
| Rating | 5.0★ | 4.8★ |
| Reviews | 20 | 22 |
| Pros | 0 | 12 |
| FactScore™ | 66.1 | 65.1 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Codex by OpenAI — Pros
No unique pros listedBoth tools — Pros
—Only in Github Copilot — Pros
Productivity boost Suggests code snippets Focus on problem-solving Reduces boilerplate Accelerates development process Integrates with major IDEs Transforms development experience AI autocomplete Handles repetitive tasks IntelliJ integration Time-saving VS Code integrationOnly in Codex by OpenAI — Cons
—Both tools — Cons
—Only in Github Copilot — Cons
Buggy Suggestions need refinementDetails
| Codex by OpenAI | Github Copilot | |
|---|---|---|
| Categories | AI Coding Agents | AI Coding Agents, AI Code Editors |
| Platforms | Web | Web |
| Became Popular | August 10, 2021 | June 29, 2021 |
| Website | openai.com | copilot.github.com |
Who Should Pick Which?
Choose Codex by OpenAI if...
- No unique pros listed
Choose Github Copilot if...
- Productivity boost
- Suggests code snippets
- Focus on problem-solving
With a FactScore™ of 66.1 vs 65.1, Codex by OpenAI leads in community reception. Codex by OpenAI uniquely offers No unique pros listed, while Github Copilot stands out for Productivity boost and Suggests code snippets.
What Users Say
Codex by OpenAI
Even with new models around, Codex remains one of the most reliable AI coding assistants—fast, structured, and still very useful.
Still the fastest way to get a working regex or a complex utility function from a single-line comment.
OpenAI Codex has become an essential part of our development workflow. With our AGENTS.md providing project context, Codex understands our monorepo architecture and coding conventions, autonomously...
Github Copilot
This launch wouldn’t have been possible without GitHub Copilot. It completely changed the way I think about programming — and I've been developing software for over 20 years. Pairing with AI has be...
I use GitHub Copilot to speed up development, generate boilerplate Swift code, and optimize algorithms. It helps me focus on Gym Hero’s core features by suggesting code completions and automating r...
GitHub Copilot is like having an AI-powered pair programmer always by your side. It speeds up coding, suggests smart solutions, and makes development smoother than ever. A game-changer for engineers!
Related Comparisons
Frequently Asked Questions
Which is better, Codex by OpenAI or Github Copilot?
Based on FactScore™, Codex by OpenAI leads with a score of 66.1 vs 65.1. Codex by OpenAI has a higher rating of 5.0★ compared to 4.8★.
What are the pros of Codex by OpenAI compared to Github Copilot?
Codex by OpenAI uniquely offers: No unique pros listed.
What are the pros of Github Copilot compared to Codex by OpenAI?
Github Copilot uniquely offers: Productivity boost, Suggests code snippets, Focus on problem-solving, Reduces boilerplate, Accelerates development process.
Is Codex by OpenAI better rated than Github Copilot?
Codex by OpenAI is rated 5.0★ from 20 reviews. Github Copilot is rated 4.8★ from 22 reviews.
What is the FactScore™ of Codex by OpenAI and Github Copilot?
FactScore™ weighs rating and review volume together. Codex by OpenAI scores 66.1 and Github Copilot scores 65.1.
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