AI browsers and extensions
Merlin: review, pricing, data and alternatives
Merlin helps people query several models through one interface. It summarizes pages and videos, analyzes documents, drafts replies and posts, and searches for information on the web. A free tier exists; the first paid plan costs $19 per month. Access and transparency score: 48/100, #4 of 6 in its category.
What is Merlin?
Merlin helps people query several models through one interface. It summarizes pages and videos, analyzes documents, drafts replies and posts, and searches for information on the web.
According to its documentation, Merlin lets you:
- query several models from one interface
- summarize pages and videos
- analyze documents
- draft replies and posts
- search for information on the web
We file it under AI browsers and extensions, the category of tools to use AI right in your browser, and it also overlaps with general AI chatbots and aI summarisers. The category lists 6 verified tools on this site.
The publisher is Foyer Tech Inc., based in United States.
Who is it for?
It is mostly useful to these profiles: marketers, content writers, students, and researchers. The need it covers is simple to state: use AI right in your browser.
Merlin is a good candidate if:
- you want to try before paying
- you also work from your phone
Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.
How much does Merlin 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 $19 per month (Pro, monthly equivalent with annual billing), according to the pricing page, checked on October 24, 2026.
Per month, that is close to the category median ($19.9 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
According to its privacy policy, data is processed in the United States.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
No export feature is documented: keep a copy of your content elsewhere.
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
Merlin runs on: web browser, browser extension, iPhone and iPad, Android, and macOS.
Interface languages: English.
There is no public API: the tool is used only through its interface.
How we scored it
Our 48/100 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 | 0/30 | API, data export, open code |
| Trust | 23/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Merlin against other tools in the aI browsers and extensions category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Merlin | Yes | $19 per month | No | 48 |
| Comet | Yes | $20 per month | – | 55 |
| Sider | Yes | not published | – | 55 |
| Monica | Yes | $99 per year | Yes | 55 |
| Dia | Yes | $20 per month | – | 40 |
| Opera Neon | Yes | $19.9 per month | – | 40 |
Verdict
Merlin publishes little verifiable information: look at the better-scored alternatives first.
Strengths
- Free tier to try it
- Available on many platforms
Limitations
- Data export not documented
- No API
Avoid if…
- You handle sensitive personal data without a processing agreement
- You need to easily retrieve your full history
- You plan to automate it or connect it to an agent
Alternatives
- Cometfree tier
- Siderfree tier
- Monicafree tier
- Diafree tier
- Opera Neonfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Merlin free?
Yes, a free plan exists, with usage limits. The first paid plan costs $19 per month.
Where is Merlin data stored?
According to the publisher, in the United States.
Does Merlin have an API?
No, no public API so far.
What are the alternatives to Merlin?
In the same category: Comet, Sider, Monica, and Dia.
Merlin or Comet: which one to choose?
Merlin starts at $19 per month, Comet at $20 per month and our score is 48/100 for Merlin and 55/100 for Comet. 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