AI writing detector
Review a writing signal with context.
Send a passage for an AI-likelihood report and read the result with its limitations. The score is one signal to review, not proof of who or what wrote the text.
Try a complete bounded result. Sign in when you want to save it.
What you get
A provider AI-likelihood score, a readable summary, and an explanation of the report’s scope.
From your material to your next step.
Choose the exact passage
Paste the text you want checked. If you just rewrote it, use the revised text before starting the check.
Request the report
Choose Check writing signals and wait for the provider result.
Interpret it carefully
Read the score, summary, and limitations together. Use other evidence and your own review.
Make it part of the way you work.
A review signal
Inspect the provider’s assessment as part of a broader writing review.
Understand the scope
Read the uncertainty rather than treating a percentage as a definitive authorship label.
Start here. Save what helps.
Use a complete bounded result before signing up. Your draft stays in the editor when you change tools, and each tool keeps its own result. AI tools share a daily browser allowance; signing in or subscribing does not automatically remove that allowance.
See the current free and Pro offerKnow the scope
AI detectors can be wrong. This report cannot prove authorship, copying, or misconduct and should not be the sole basis for an academic or employment decision.
Open the standalone toolA few useful details.
Does 100% prove text was written by AI?
No. It is the provider’s AI-likelihood signal, not proof of authorship. False positives and false negatives are possible.
Does a humanized rewrite have to score low?
No. A rewrite does not guarantee a detector score. Make sure you are checking the revised passage rather than the original input.
Keep going.
All featuresAI writing tools
Revise a passage, check grammar, review writing signals, look for web matches, or work on references. Keep your draft in view while each tool gives you its own result.
Natural writing editor
Use StealthGPT Super to make a bounded natural-language rewrite. Review the wording alongside your original, with paragraph breaks and supported list structure carried through the request.
Web similarity checker
Compare a passage against public web sources through Copyscape. Read the reported similarities and open the available source links before drawing a conclusion.