AIAI Checker Lab
AI probabilityConfidence scoreText & image review

AI checker for text and images.

Paste text or upload an image to estimate AI probability, see the strongest reasons, and check confidence. Use AI Checker Lab as context, not proof of authorship or origin.

Step 1

Paste text

0 words

Paste text or choose a sample above.

Privacy: signed-in checks save summaries only, never full raw text.

Result

Waiting

Run a check to see AI probability, confidence, key reasons, and next steps.

Waiting

Preview

%

AI probability

AI vs human estimate

Human-like cues

Human-like context

Calibration

Confidence and next steps

Context only. Scores can help you review text, but they do not prove authorship or origin.
Use as context, not proof. AI Checker Lab estimates probability and confidence. It cannot prove authorship or origin.

Pricing

Start with free AI checks. Paid plans will come later.

Start with free checks, then create an account for saved history. Pro features will come later when higher limits and advanced reports are ready.

AnonymousAccountPro

Starter

Free

$0no account needed

Quick AI checks for visitors who need a fast text or image result.

  • Limited daily checks
  • Short text checks
  • Basic image checker
  • No saved history
Try free

Saved history

Available

Account

$0with sign in

A free account for saved results and easier monthly usage tracking.

  • Monthly free checks
  • Saved check history
  • Text + image result records
  • Privacy-conscious result history
Create account

Coming soon

Pro

Paidcoming later

For higher limits, longer checks, and shareable reports when Pro is ready.

  • Higher monthly quota
  • Longer text checks
  • Advanced checking mode
  • Exportable/shareable reports
Preview plan
Later

Team and automation features will come later if users need them.

How it helps

01

Add content

Paste text or upload an image.

02

Review the reasons

Check the probability, confidence, and strongest reasons.

03

Use context

Treat the score as decision support, never as a verdict.

Key details

Probability needs context.

Probability is an estimate, not proof.
Confidence changes with length, clarity, and available evidence.
Reasons show why more context may be needed.
Signed-in users can save check history in their account.

Checker tools

Choose what you want to check.

01Free checkerText + imageOpen β†’02Text checkerPaste textOpen β†’03Image checkerUpload imageOpen β†’04Essay checkerDraft reviewOpen β†’05Generic writing checkerGeneric or vague writingOpen β†’

How it helps

Check AI probability without treating it as proof.

Paste text or upload an image, then use the probability, confidence, and key reasons as context for a human decision.

Text check 1

Text checking is clear and easy to use

Text check 2

Image checking is available too

Text check 3

Reason cards explain the probability before you decide

Text check 4

Text and image AI probability checks

FAQ

Is the score proof?

No. It is a probability estimate for cautious review.

Does short text work?

Yes, but confidence is usually lower for short or generic text.

Can I check images too?

Yes. Use the image tab to check metadata and basic visual cues.