Guide · checked October 13, 2026
You teach or run a school and need to check student work. ItsAI is the one to try. It checks for AI writing and plagiarism, works inside Canvas, and has a free plan.
Checks essays for AI writing and plagiarism, takes PDF and Word files, and plugs into Canvas.
First stepRun three essays you already know the answer for through the free plan to see how it does.
Free plan covers 4,000 words, paid plans start at $7 a month and accuracy figures are the company's own claims.
Checks whether images or videos students hand in are AI-made.
First stepTry the web detector on one image.
There's no public pricing page; paid API and enterprise pricing go through sales.
Collect posts and data from X, Reddit and YouTube, or buy ready-made social media datasets.
Pay as you go starts with $1 free credit; plans run $99 to $499 a month, payment method not stated.
A pay-per-use search API that pulls results from the web, X, Reddit, YouTube and more.
Attaching a card gives $5 in credits; prices start around $0.15 per 1,000 X posts.
A privacy network and VPN app that encrypts your internet traffic on phone and browser.
The site doesn't state prices or payment methods; there's a 'Buy data' page we didn't verify.
Tests your image AI model with tricky inputs and sends a report on where it breaks.
Only image classification models are supported now, the Pro plan is early access and orders go through a contact form.
Funded prize challenges for hard problems in cryptography, quantum computing and AI.
Submission credits are bought by card through Open Quantum or paid in the subnet's token; current prize amounts weren't shown.
Private AI chat models running on locked-down hardware so the host can't see your data.
You buy it through sayGM today; KubeTEE's own USDC and TAO billing is listed as coming.
No for ItsAI and BitMind, which are free to start or take normal payment.
Accuracy numbers are the companies' own, so don't treat any detector as final proof.
Bittensor is a network of 128 subnets. Each one is a competition where miners do a job, like serving AI models or renting out GPUs, and validators score the work. Some subnets also sell what they produce as a normal product. This guide only recommends those.