Developmental feedback for $2-9 per draft
Discover the invisible patterns in your craft, get feedback, and publish with confidence. Sign in to select a plan and get started. Also check out Substack for the living curriculum ($10/mo) and Essay Club ($300/yr).
Log in to get upload credits- 1 upload
- $9.00 / draft
- 5 uploads
- $5.80 / draft
- 15 uploads
- $4.00 / draft
- For daily usage
- $2.00 / draft
Why use this instead of ChatGPT?
Built on a pattern language with a +25k word wiki
Based on hundreds of essays, this tool understands the timeless qualities of great essays, and helps you see those patterns in your own work. Easily jump from your feedback into lessons and examples.
This runs +1,000 atomic evaluations on each draft
This is like Deep Research for essays. The analysis takes 15-45 minutes because it's analyzing ~100 criteria over each paragraph. Every ~45 seconds you'll get a pattern score and feedback. Unlike chatbots, this has a 99% precision score, returning stable scores over multiple iterations.
Calibrated with a human-scored set of +100 essays
I score essays 1-5 on 27 patterns, and use this control set to calibrate the feedback engine. The accuracy is currently at 73%, which is 10% higher than other chatbots, and will continually get better.
Save the best suggestions to an editing checkilst.
This tool gives you a big picture sense of your strengths and weaknesses, and then it recommends the top 10 suggestions to implement. You can also zoom into any pattern, save your favorite edits, and keep track of progress as you implement.
See your improvement and publish with confidence
Compare your composition quality between drafts so you feel good about what you're about to share with your audience.