No AI detection tool is perfectly accurate. Results are probability estimates based on statistical patterns. Treat them as one signal among others, not as definitive proof.

Why do I need at least 30 words?

Short snippets do not give the model enough signal to produce a reliable score. We require 30 words minimum so the result is meaningful.

What file types are supported?

You can paste text directly or upload PDF, Word (.doc/.docx), Excel (.xls/.xlsx), or TXT files up to 20 MB.

Yes, for this tool only. Text is sent to a hosted AI model so it can produce a score. It is processed in memory and not stored after the response is returned.

AI Content Detector, Check If Text Is AI-Generated

Detect AI-generated content from ChatGPT, Claude, and Gemini. Paste text or upload a document to get a probability score with a signal breakdown. Results are estimates, not definitive proof. Note: unlike most FilesFlow tools, this one sends your text to a hosted AI model for analysis.

Free, no sign-up. This tool sends your text to a hosted AI model for processing. Text is not stored after the response is returned.

How to use this tool

Paste text (minimum 30 words) or upload a file (PDF, Word, Excel, TXT)
Click Detect AI to start the analysis
View your AI score, verdict, and detailed breakdown

Key facts

Tool: AI Detector
Price: Free
Sign-up: No
Watermark: No
Processing: Hosted AI processing

When to use AI Detector

AI Detector gives a quick probability signal on whether text was written or heavily assisted by AI — one input for editorial or classroom review, never final proof on its own.

Privacy, limits, and output quality

This AI-assisted tool may send text to a hosted processor so it can generate or evaluate the result. Avoid submitting passwords, private keys, confidential contracts, medical records, or other sensitive personal data.

For best results, paste clean input, review the output, and keep sensitive secrets out of any tool that must contact a server. Browser-only utilities run locally, while AI-assisted utilities may need hosted processing.

How Utilities work stays simple

Use this utility for fast everyday work and quick validation. For high-stakes legal, academic, security, or compliance decisions, treat the output as a helper and verify it with the appropriate source or expert.

AI Detector for real workflows

Get a quick signal when reviewing text that may have been written or heavily assisted by AI.
Use it as one part of an editorial, classroom, or publishing review workflow.
Compare the result with your own judgment about style, sources, structure, and context.

Checklist before using AI Detector

Do not treat any AI detector as final proof by itself.
Review short text with extra caution because short samples are harder to judge reliably.
Avoid submitting private, sensitive, or confidential writing.

AI Detector vs heavier alternatives

FilesFlow can give a quick screening signal. Human review, source checking, and clear policy are more reliable for high-stakes decisions.

Useful next tools

Frequently asked questions

How accurate is it?: No AI detection tool is perfectly accurate. Results are probability estimates based on statistical patterns. Treat them as one signal among others, not as definitive proof.
Why do I need at least 30 words?: Short snippets do not give the model enough signal to produce a reliable score. We require 30 words minimum so the result is meaningful.
What file types are supported?: You can paste text directly or upload PDF, Word (.doc/.docx), Excel (.xls/.xlsx), or TXT files up to 20 MB.
Is my text uploaded?: Yes, for this tool only. Text is sent to a hosted AI model so it can produce a score. It is processed in memory and not stored after the response is returned.