Readability Metrics
TechWrit AI calculates readability scores in real time as you type. In Rewrite and Simplify modes, before/after comparisons show the concrete impact of edits.
Scores
Flesch Reading Ease (0-100)
Measures how easy text is to read. Higher is easier.
| Score | Level |
|---|---|
| 80-100 | Easy — conversational, accessible to wide audiences |
| 60-79 | Standard — comfortable for most readers |
| 40-59 | Difficult — may require domain expertise |
| 0-39 | Very difficult — academic or highly specialized |
Flesch-Kincaid Grade Level
Estimates the US school grade required to understand the text. A score of 8 means an 8th grader should be able to understand it.
Target for technical docs: Grade 8-12 depending on audience. Use the Level dropdown in the context bar to set the target: General (Grade 6-8), Standard (Grade 8-10), or Advanced (Grade 10-12).
Gunning Fog Index
Estimates years of formal education needed. Similar to grade level but weights complex words (3+ syllables) more heavily.
Additional metrics
- Word count — Total words in the input
- Words per sentence — Average sentence length (lower is generally clearer)
- Complexity % — Percentage of words with 3+ syllables
Before/After comparison
In Rewrite and Simplify modes, the output panel shows a side-by-side comparison:
- Flesch Ease (higher is better)
- Grade level (lower is better)
- Words per sentence (lower is better)
- Complexity % (lower is better)
- Total word count
Improvements are highlighted in green; regressions in orange.
Word-level diff
Toggle the diff view to see exactly what changed:
- Red strikethrough — removed words
- Green highlight — added words
- Normal text — unchanged
A summary shows the count of removed and added words.
