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isGenAI vs Illuminarty: AI image checker alternative

Illuminarty uses computer vision to estimate the probability that an image is AI-generated, with a free tier and paid plans that add generator identification and region highlighting; it also checks text. isGenAI reads the evidence saved inside the file (C2PA, IPTC labels, saved prompts) and shows the field behind each finding, free with no account.

isGenAI (isgenai.com) is not affiliated with Illuminarty. Looking for Illuminarty itself? Go to illuminarty.ai/en.

Facts about other products come from their own public pages as of October 2026, linked under Sources. Updated . Spotted something out of date? Send a correction.

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isGenAI and Illuminarty compared

Side by side, as of October 2026. Each Illuminarty cell links to the page it comes from.
QuestionisGenAIIlluminarty
Free useFree web checker and free browser tools; no paid tier is needed to check a file.Free tier for basic image and text classification, with no stated cap. (source)
Sign-upNone. No account, no email.Its pages do not state whether the free web app requires an account; paid plans link to sign-up. (source)
Paid plansNone needed.Basic $10 a month, Pro $30 a month, Enterprise on request. (source)
MethodReads records saved in the file: C2PA Content Credentials, the IPTC digital source type, prompts saved by AUTOMATIC1111, ComfyUI, InvokeAI or NovelAI, and EXIF or generator metadata. It never scores how the pixels look.Computer-vision models estimate an AI probability; higher plans add model identification and highlight the regions that raised it. (source)
Media coveredImages (records), C2PA in video and PDF, text and code (declared use).Images and text. (source)
APIPOST /v1/check with a file, URL, text or code. No API key for the documented endpoints.API on paid plans: 10,000 requests a day on Basic, 40,000 on Pro. (source)
PrivacyPrivate by default: private checks stay out of public reports, and the C2PA checker processes uploads in memory without storing them.Uploaded images are stored only for as long as needed to provide the service; no fixed period is stated. (source)
ResultNamed findings, each with the field it came from, or “no AI evidence found” (which means no record in that copy, not proof of a camera).A probability, with a per-generator breakdown and highlighted regions on higher plans. (source)

When to use which

Choose Illuminarty when

  • You want a visual heatmap of which regions look generated.
  • You need an estimate for an image that has lost its records.
  • You want a paid API with high daily request limits for classification.

Choose isGenAI when

  • You want proof you can cite: the C2PA signer, the IPTC label or the exact saved prompt.
  • You want text checks that show declared AI use rather than a probability.
  • You need a free API with no key.
Controlled example PNG file that carries this record: Content Credentials found

test-signed.pngPNG file · controlled example

  1. Signature + IHDR
  2. iTXt XML:com.adobe.xmp
  3. tEXt parameters
  4. tEXt prompt / workflow
  5. tEXt invokeai_metadata
  6. eXIf
  7. caBX C2PA manifestrecord
  8. IDAT pixels
  9. IEND

Content Credentials found

A signed manifest describes how the file was made.

Signer, recording tool, actions and the signature check result are reported separately, so you can weigh each one.

Open the Content Credentials checker →
Content Credentials found: where this record sits inside a PNG file and what the isGenAI report says about it. The picture is a code-drawn controlled example that carries this record; download it and check it yourself.

How to do the same job with isGenAI

  1. Get the original file, ideally the download from the generator or the sender, not a screenshot or a copy re-saved by a social app.
  2. Open the free AI image detector at isgenai.com/ai-image-detector and upload the file. No account is needed.
  3. Read each finding with the field it came from: a C2PA manifest, an IPTC digital source type, a saved prompt or generator metadata.
  4. If the report says no AI evidence was found, treat that as “no record in this copy”, then look for the original source or run a pixel-based classifier if you need a probability.

Check an image for free

Questions

Is isGenAI a free Illuminarty alternative?

Yes for evidence in the file: free, no account, keyless API. It does not estimate a probability from the pixels, so it complements rather than copies Illuminarty’s approach.

Does isGenAI highlight AI regions in an image?

No. Region highlighting is a classifier feature. isGenAI shows which record in the file says what, which you can verify independently.

What if the image has no records?

isGenAI reports “no AI evidence found”, meaning that copy carries no supported record. That is not proof of a human author; look for the original upload or use a classifier as a second opinion.

Is isGenAI affiliated with Illuminarty?

No. isGenAI is independent and not affiliated with Illuminarty. Facts here come from illuminarty.ai as of October 2026.

Sources

Every statement about Illuminarty comes from these pages, read as of October 2026. Products change; check the page before you rely on a detail. Product names belong to their owners and are used only to identify them.