Merlin AI
Browser extension giving one account access to many AI models.
Pricing
About Merlin AI
Merlin AI is a browser extension and web app that puts multiple leading AI models behind a single account and interface, including ChatGPT, GPT-4, Claude, Deepseek V3, Llama, and Mistral. Rather than switching between separate apps and subscriptions, users install the extension and get an AI sidebar, opened with Cmd+M or Ctrl+M, that follows them around the web — drafting emails in Gmail, answering questions while browsing search results, or summarizing YouTube videos without leaving the page. A feature called Merlin Magic acts as a one-click autopilot: it reads the user's prompt, figures out what kind of task it is, and automatically routes it to the cheapest model in its lineup capable of handling it, rather than making the user pick a model manually. Merlin also bundles more than 70 smaller AI tools, covering things like AI detection and text humanizing, inside the same interface. The extension is available on Chrome and Edge, with companion apps for iOS, Android, Windows, and Mac, all tied to one account. Merlin offers a free account to get started, with paid tiers for higher usage; exact pricing details were not confirmed on the pages reviewed.
At a glance
- Platforms
- Web, iOS, Android, Windows, macOS, Chrome Extension
- Integrations
- Gmail, YouTube, Google Search
- Last verified
- August 2026
Who It's For
- •Students
- •Professionals (marketers, writers, developers, customer support)
- •Anyone seeking to enhance their productivity and efficiency online
- •Individuals who frequently read, write, or research on the internet
How It Works
- 1Merlin AI integrates as a browser extension (for Chrome, Edge, Firefox).
- 2Users can activate it using a keyboard shortcut (Cmd/Ctrl+M) or by selecting text.
- 3It leverages AI models like GPT-4 and Claude to process user requests and generate responses.
- 4It operates directly on web pages, providing contextual assistance.
How to Use Merlin AI
- 1Install the Merlin AI browser extension.
- 2Use the shortcut (Cmd/Ctrl+M) to open Merlin's chat interface.
- 3Select any text on a webpage and right-click to access Merlin's options (e.g., summarize, rewrite).
- 4Ask questions, generate content, or summarize articles directly from within your browser.
- 5Utilize its features on platforms like Gmail (for email drafting), YouTube (for video summaries), and Google Search.
Key Features
- •Access to multiple AI models from one account
- •Merlin Magic automatic model selection
- •Browser sidebar assistant
- •70+ built-in AI tools
Use Cases
- •Drafting emails in Gmail
- •Summarizing YouTube videos
- •AI-assisted web research and writing
Pros & Cons
Advantages
- •Merlin AI offers a wide range of AI functionalities within a single browser extension, reducing the need for multiple tools.
- •Its integration with popular platforms like Google, Gmail, and YouTube provides seamless and contextual assistance.
- •The availability of both free and premium plans makes it accessible to a broader user base.
- •Merlin's ability to summarize long content saves significant time for users, especially for research and learning.
Disadvantages
- •Reliance on a browser extension might raise privacy concerns for some users regarding data processing.
- •Free plan limitations in terms of daily usage could be restrictive for heavy users, pushing them towards paid subscriptions.
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Frequently Asked Questions
What is Merlin AI?
Merlin AI is a browser extension and web app that puts multiple leading AI models behind a single account and interface, including ChatGPT, GPT-4, Claude, Deepseek V3, Llama, and Mistral. Rather than switching between separate apps and subscriptions, users install the extension and get an AI sidebar, opened with Cmd+M or Ctrl+M, that follows them around the web — drafting emails in Gmail, answering questions while browsing search results, or summarizing YouTube videos without leaving the page.
How much does Merlin AI cost?
Merlin AI is free to use. A free trial is available.
Is Merlin AI free?
Yes, Merlin AI offers a free plan you can start with.
What are the best Merlin AI alternatives?
Popular Merlin AI alternatives include ChatGPT, Perplexity, Monica.
What is Merlin AI used for?
Merlin AI is commonly used for Drafting emails in Gmail, Summarizing YouTube videos, AI-assisted web research and writing.
What platforms does Merlin AI support?
Merlin AI is available on Web, iOS, Android, Windows, macOS, Chrome Extension.
Information Accuracy
Please note: While we regularly update all tool information including descriptions, features, pricing, and other details, this information may change over time as tools evolve and update their offerings. For the most current and accurate information, we recommend visiting the official website directly. Our goal is to provide you with comprehensive and up-to-date information to help you make informed decisions.