Codex by OpenAI
AI that writes code for you
Hemingway Editor
Hemingway Editor makes your writing clear and correct.
Updated February 2026
| Codex by OpenAI | Hemingway Editor | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 20 | 5 |
| Pros | 0 | 0 |
| FactScore™ | 66.1 | 38.9 |
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 Hemingway Editor — Pros
No unique pros listedOnly in Codex by OpenAI — Cons
—Both tools — Cons
—Only in Hemingway Editor — Cons
—Details
| Codex by OpenAI | Hemingway Editor | |
|---|---|---|
| Categories | AI Coding Agents | AI Coding Agents, Writing assistants, Text-to-Speech Software |
| Platforms | Web | Web |
| Became Popular | August 10, 2021 | February 12, 2014 |
| Website | openai.com | www.hemingwayapp.com |
Who Should Pick Which?
Choose Codex by OpenAI if...
- No unique pros listed
Choose Hemingway Editor if...
- No unique pros listed
With a FactScore™ of 66.1 vs 38.9, Codex by OpenAI leads in community reception. Codex by OpenAI uniquely offers No unique pros listed, while Hemingway Editor stands out for No unique pros listed.
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...
Hemingway Editor
This readability rating is very good
I have been using this for years. I especially like to finish writing something and then run the 'completed' text through the app. It shows options for cuts and repeat phrases that you might not se...
Really good text editor. Makes writing engaging content much easier and I found it helped me simplify my sentence structure really well. I don't have their paid version at the moment, but I've used...
Related Comparisons
Frequently Asked Questions
Which is better, Codex by OpenAI or Hemingway Editor?
Based on FactScore™, Codex by OpenAI leads with a score of 66.1 vs 38.9. Codex by OpenAI has a higher rating of 5.0★ compared to 5.0★.
What are the pros of Codex by OpenAI compared to Hemingway Editor?
Codex by OpenAI uniquely offers: No unique pros listed.
What are the pros of Hemingway Editor compared to Codex by OpenAI?
Hemingway Editor uniquely offers: No unique pros listed.
Is Codex by OpenAI better rated than Hemingway Editor?
Codex by OpenAI is rated 5.0★ from 20 reviews. Hemingway Editor is rated 5.0★ from 5 reviews.
What is the FactScore™ of Codex by OpenAI and Hemingway Editor?
FactScore™ weighs rating and review volume together. Codex by OpenAI scores 66.1 and Hemingway Editor scores 38.9.
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