The Flesch–Kincaid measures how easy it is to understand an by considering factors like sentence length and word complexity. There are two main types: the Flesch Reading Ease, which rates texts on a scale from easy to difficult, and the Flesch–Kincaid Grade Level, which estimates the U.S. school grade level needed to comprehend the text.

Flesch Reading Ease higher scores indicate material that is easier to read; lower numbers mark passages that are more difficult to read.

Flesch–Kincaid Grade Level corresponds to a U.S. grade level. For example, a score of 8.0 suggests that the text should be understandable by an 8th grader. Higher scores indicate material that is more complex and thus requires a higher level of education to understand.

You can read more about the Flesch-Kincaid in Relari AI.

Settings and parameters

  1. Go to Keywords AI (on top of the left nav bar) > Evaluation > Text generation > Flesch–Kincaid
  1. Click on the Flesch–Kincaid card to create the setting:
  • Click the enable switch to turn on the evaluation
  • Pick which method you want to use:
    • Flesch-Kincaid Reading Ease
    • Flesch–Kincaid Grade Level
  1. Make an API call, and the evaluation will be run based on the Ramdom sampling setting.

  2. Check results in the requests log