undetectable.wtf vs AI or Not

undetectable.wtf is a browser-based AI humanizer that takes drafts from ChatGPT, Claude, and similar writers and reworks them so common detectors flag less often. You paste up to 15,000 characters into the homepage editor, pick Rewrite or Cryptography mode, and run output against tools like GPTZero, Turnitin, and ZeroGPT. The site lists a 98% bypass success rate and a 4.9/5 rating from 2,300+ users.

Most humanizers only paraphrase. undetectable.wtf also ships Cryptography mode, which swaps in Unicode homoglyphs and zero-width characters so the text looks unchanged to readers while breaking detector pattern matching. That is a different trade-off than rewrite-only services, and both modes here count against monthly essay quotas rather than offering unlimited character processing.

Students, freelance writers, and research assistants use it when AI-assisted drafts need to clear school or client checks. Signup includes a 3-day trial with 2 essays and no credit card. Paid Standard and Pro tiers raise the monthly essay cap, and Pro unlocks input limits up to 2x Standard capacity.

AI or Not is an AI detection platform that checks whether images, text, audio, music, and video were created by humans or generated by AI. You can upload files directly on the site or integrate detection through a REST API. The service identifies specific generators like Stable Diffusion and Midjourney for images, flags deepfakes in faces and video, and scores text for AI authorship.

The platform reports 98.9% accuracy across modalities and has processed over 6 million checks for more than 500,000 users. Customers include media and enterprise teams that need to verify content authenticity, combat misinformation, and meet emerging AI labeling requirements.

Developers get API keys on every plan, including the free tier. Credits roll over monthly on paid plans, and per-modality pricing covers image, text, voice, music, video, deepfake, and reverse image search checks.