AI content detection
Originality.ai: review, pricing, data and alternatives
Originality.ai helps people reviewing texts estimate the presence of AI-generated writing and search for plagiarized passages. It also assesses readability, checks grammar, and supports sharing analysis reports. A free tier exists; the first paid plan costs $12.95 per month. Access and transparency score: 65/100, #5 of 9 in its category.
What is Originality.ai?
Originality.ai helps people reviewing texts estimate the presence of AI-generated writing and search for plagiarized passages. It also assesses readability, checks grammar, and supports sharing analysis reports.
According to its documentation, Originality.ai lets you:
- estimate the presence of AI-generated text
- search for plagiarized passages
- assess a text's readability
- check grammar
- share analysis reports
We file it under AI content detection, the category of tools to check whether content is AI-made, and it also overlaps with grammar and paraphrasing and sEO. The category lists 9 verified tools on this site.
The publisher is Originality AI Inc., based in Canada. The service launched in 2022, which gives it some track record.
Who is it for?
It is mostly useful to these profiles: content writers, marketers, and teachers. The need it covers is simple to state: check whether content is AI-made.
Originality.ai is a good candidate if:
- you want to try before paying
- you plan to connect it to your tools or automations through its API
The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.
How much does Originality.ai cost?
Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.
The first paid plan costs $12.95 per month (Pro, billed annually at 155.40 USD; 14.95 USD when paying monthly), according to the pricing page, checked on October 24, 2026.
Per month, that is close to the category median ($12.95 per month, based on tools with a published price).
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: PDF. Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Originality.ai runs on: web browser, browser extension, and API.
Interface languages are not specified.
A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.
How we scored it
Our 65/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 25/30 | free tier, published price, French interface |
| Openness | 20/30 | API, data export, open code |
| Trust | 20/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Originality.ai against other tools in the aI content detection category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Originality.ai | Yes | $12.95 per month | Yes | 65 |
| ZeroGPT | Yes | not published | Yes | 73 |
| Compilatio | Yes | €4.99 one-off payment | Yes | 70 |
| GPTZero | Yes | not published | Yes | 68 |
| Copyleaks | Yes | $167.88 per year | Yes | 65 |
| Content Credentials Verify | Yes | not published | – | 63 |
| Resemble AI | Yes | $0 pay as you go | Yes | 61 |
| AI or Not | Yes | $5 per month | Yes | 58 |
Verdict
Originality.ai is a decent option; compare its price and terms with the category leaders.
Strengths
- Free tier to try it
- Public API
- Established since 2022
Limitations
- Data hosting not disclosed
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- ZeroGPTfree tier
- Compilatiofree tier
- GPTZerofree tier
- Copyleaksfree tier
- Content Credentials Verifyfree tier
- Resemble AIfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Originality.ai free?
Yes, a free plan exists, with usage limits. The first paid plan costs $12.95 per month.
Where is Originality.ai data stored?
The publisher does not clearly say so in its public documentation.
Does Originality.ai have an API?
Yes, a public API is documented.
What are the alternatives to Originality.ai?
In the same category: ZeroGPT, Compilatio, GPTZero, and Copyleaks.
Originality.ai or ZeroGPT: which one to choose?
Our score is 65/100 for Originality.ai and 73/100 for ZeroGPT. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score