Free Tool

AI Reddit Comment Detector

Check a Reddit comment for AI-sounding patterns, canned transitions, marketing language, and formulaic phrasing before it gets posted.

Scan a comment

Paste comment text, a Reddit comment link, then analyze it with an LLM.

Ready to scan

Reddit comment

0 characters

AI-likeness score

Higher means more AI-sounding. Final score comes from the AI call and validation calibration.

Validation rules supplied to the LLM

Do not use the rhetorical contrast pattern "it is not X; it is Y" or "this is not X, this is Y".
Avoid punchline pivots like "not philanthropy, a liability waiver" or "not about X, about Y".
Avoid canned AI helper phrases like "it is worth noting", "additionally", "furthermore", or "in conclusion".
Avoid uncited generic authority claims like "experts agree", "many studies show", or "industry observers note".
Avoid stacked rhetorical questions, bold-label list formatting, and table-like structure in comments.

How it works

1
Paste a draft
Drop in a Reddit comment before publishing or approving it.
2
Or paste a Reddit link
Use a Reddit comment URL to fetch the public comment text before scanning.
3
Analyze with an LLM
The model reviews the comment and uses our local validation rules as supporting evidence.
4
Rewrite flagged lines
Use the AI verdict and validation hints to make the comment more specific, casual, and context-aware.

What you'll get

LLM-based verdict
The final score and verdict come from an AI review, not only static regex checks.
Validation pre-scan
Our deterministic rules still surface supporting signals for the LLM and reviewer.
Reddit-specific rules
Designed for comments, not essays or long-form blog posts.
Rewrite guidance
Each issue explains what to change without pretending to prove authorship.

Frequently asked questions

Does this prove a comment was written by AI?

No. It uses an LLM plus validation signals to judge style. Treat the result as evidence, not authorship proof.

What kinds of patterns does it catch?

The LLM reviews the whole comment and receives validation hints for formulaic contrast, canned AI transitions, generic authority claims, marketing language, stacked rhetorical questions, and blog-style formatting.

Can I use this before posting on Reddit?

Yes. Paste a draft, review the flagged locations, then rewrite the specific parts that sound too polished, generic, or promotional.

Is my text sent to a server?

Yes. Text is sent to our server action so the LLM can analyze it. Reddit links are fetched server-side before analysis.