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Merlin AI Review (2024): The Best AI Tool for Boosting Productivity?


Staff member
Mar 19, 2024
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merlin ai review

Are you constantly jumping between apps to generate images, write content, or get feedback on your code? Wouldn’t it be amazing if there was a single platform that could handle all that and more?

Introducing Merlin AI. This AI assistant brings the power of all popular AI models under one roof. I have used and tested many AI tools since the last year. As a productivity fanatic, Merlin AI caught my attention! So, after using it for a few weeks, I’m finally here with the Merlin AI Review.

In this Merlin AI Review, we’ll delve into the user interface and the key features of this productivity assistant. We’ll also touch upon its pricing, customer support, pros, and cons, and look at some potential alternatives.

Are you ready to discover how this revolutionary tool can boost your productivity? Let’s dive right in to find out.

Merlin AI Review

Kripesh Adwani

Ease Of Use


Content Quality


Image Generation


Merlin AI goes beyond content generation. It boasts a fantastic Chrome extension that streamlines your workflow with email assistance, YouTube summaries, and blog post summaries. Plus, the AppSumo lifetime deal is a steal! You’ll gain access to premium AI chatbots like GPT-4o, Claude, and Gemini!

While social media integration and image generation credits could be improved, Merlin AI shines for email, content creation, and research. It’s a must-try for anyone looking to boost their productivity!


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Disclaimer : I strongly believe in transparency. If you buy using the links on our site, we may earn a small commission without any extra cost to you. This helps me to keep producing honest reviews. Read More >>

Table of Contents

About Merlin AI

Merlin AI is an AI productivity assistant founded by Pratyush Rai, Siddhartha Saxena, and Sirsendu Sarkar in 2021. It is powered by GPT 4, Claude, Claude 100k, Llama 2, and OpenAI Key.

Merlin AI review

With over 1 million trusted users, Merlin AI is used by top brands and companies like Netflix, IBM, Intel, Microsoft, Spotify, Sony, Samsung, and more. Merlin AI is available as a Chrome extension with 26+ AI tools to create and summarize content and code.

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Merlin AI User Interface

The user interface of Merlin is super modern and intuitive, with pleasing colors and design. The dashboard features a UI similar to ChatGPT, where you can chat with Merlin AI. It also features pre-built options to interpret code, chat with docs, generate images, create chatbots, etc.

Merlin AI user interface

On the left panel, you can access your generation history, saved prompts, support, etc. The top left corner displays the number of queries remaining on your account, which is convenient. You can also toggle between the light and dark modes to prevent eye strain.

Overall, its user interface is clean, friendly, and organized with minimal features.

How to Use Merlin AI?

Whether you’re a newbie or a professional, using Merlin AI is a breeze! Follow the steps mentioned below to get started with it!

Step 1: Install Extension

Merlin AI Chrome Extension

The first step is to install the Merlin AI Chrome extension and sign up with a free account. Once you finish the sign-up process, you can log in to your Merlin AI account.

Visit Merlin

Step 2: Activate Merlin AI

Next, visit any website and hit the keyboard shortcut Ctrl/Cmd + M to activate Merlin. It will pop up as a window on the right side of your screen, where you can work with it efficiently.

Activate Merlin Extension

It also integrates with popular social apps like LinkedIn, Gmail, X (Twitter), etc. So, you can access Merlin AI from within these applications as well.

Step 3: Write Your Query

Using Merlin AI extension

Now, you can write your prompt and select a preferred AI model to execute it. If your query requires access to the latest data on the Internet, make sure to enable web access. You can switch between different AI models to get a variety of results.

Step 4: Share with Others

Share Merlin AI Chat

Once you are happy with your output, you can copy and paste it to your desired location. Alternatively, you can also generate a link to share your chat with others.

Merlin Chat

1) Multiple AI Models

Merlin AI brings the power of 10 advanced AI models to your fingertips. When supplying a prompt in the chat, you can specify the AI model you wish to use for the query. For content generation, it lets you choose from different versions of GPT, Claude, Gemini, and Mistral.

Merlin AI models

Besides each AI model, you can check the number of credits it consumes for a single query. What I loved about Merlin AI is that even in its free version, you get access to the latest GPT-4o model.

By default, Merlin AI is not connected to the web. If your query requires access to the Internet, you can enable web access with a single click. Current affairs, news, etc, are the best use cases where you require internet access.

2) Code Interpreter

If you are into software development or data analytics, you’ll love this tool. The Code Interpreter lets you upload your data in the form of Google Docs, Sheets, and images. Then it analyzes your content to answer any questions around it.

Merlin AI Code Interpreter

However, it’s not just limited to code. You can use it to analyze any kind of data. For instance, the above image gives me 3 insights from an Excel file of student grades. You can also ask direct questions to extract specific data from the uploaded file.

Overall, Code Interpreter can have many use cases. It could be a great tool to quickly analyze complex data and get help with code generation and code review in any language.

3) Chat with PDFs and Documents

Want to learn about a specific topic but don’t have time to read the entire book? Merlin AI can help you out.

Merlin AI - Chat with PDFs

To get started, you simply need to upload a PDF or document on the dashboard and start chatting with it. It gives intelligent answers along with references from the uploaded resource.

Additionally, you can also upload images in your chat. The AI will analyze the image and offer appropriate responses to your queries.

4) Custom Chatbots

Want to build a chatbot for a specific use case? You can do so with Merlin AI. To start, you simply need a name for your chatbot along with a category. Some popular categories include FAQs, eCommerce, Finance, Healthcare, Personal Assistant, News and Media, etc.

Merlin AI - Chatbot

Next, you can briefly describe what your chatbot should do. However, I found this functionality of Merlin AI pretty average. They should also allow additional customizations for your chatbots.

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Merlin For Emails

Merlin AI integrates with Gmail and Outlook to boost email communication.

You simply need to specify your context (or just click yes/no) and choose an AI model (GPT 3 or GPT 4), and it will generate the entire email or email reply for you within a matter of seconds!

Merlin AI - Email replies

The above image depicts an email reply generated by Merlin AI politely declining an offer presented by a hosting company. The AI understood the context really well and generated concise replies.

You can further refine your output by using options like shorten, simplify, improve writing, etc.

In my experience, the outputs produced by both GPT 3 and GPT 4 models were pretty similar. You can use the GPT 3 model to save up your AI credits.

Now, coming to generating new emails, here’s a cold email I generated pitching my company’s services to potential clients. For this, I simply entered my name and a short description of my brand in the additional settings.

Merlin AI - Cold Emails

I found GPT 4 much better for generating emails from scratch. It is more focused and produces more straightforward results. Where GPT 3 took 5 paragraphs to generate a cold email, GPT 4 conveyed the same message in merely 3 paragraphs.

Overall, it depends on your preference. If you want to generate elaborate personal or business emails, you can opt for GPT 3. For to-the-point email communication, you can select the GPT 4 AI model.

Merlin For LinkedIn

Merlin AI brings a tonne of value to LinkedIn users. Whether it’s creating a new post or replying to comments, Merlin AI can get it done within seconds!

You can create multiple types of posts, like thought leadership posts, company updates, personal milestones, and hiring posts. It supports GPT 3.5 and GPT 4 AI models for generating content.

Here’s an example of a thought leadership post on “content writing vs copywriting” generated with GPT-4o.

Merlin AI for Linkedin posts with GPT-4o

But that’s not all. We all know LinkedIn thrives on engagements. With Merlin AI, you can craft value-adding comments under every post you read within seconds. All you need to do is roughly describe the content of the comment and it’ll transform it into a professional language.

Merlin on LinkedIn comments

Overall, Merlin AI could help boost productivity for LinkedIn users. I personally didn’t like the LinkedIn posts created from scratch. But the LinkedIn replies are pretty good. I would suggest using the GPT 3.5 model to get effective responses.

Merlin For X (Twitter)

Merlin AI can also help you craft engaging tweets and replies for X. For generating a new tweet, you simply need to provide a short context and let AI handle the rest.

Here are the tweets generated using GPT 3.5 and GPT 4 AI models for the prompt “Love how ChatGPT-4o can mimic human conversations with emotions and can sing songs.”

Merlin AI - tweets (GPT 3.5 vs GPT 4)

Honestly, I found both versions pretty similar. But GPT 4 produces slightly better results.

Next, you can also use Merlin AI to reply to tweets from other creators. Following are two replies generated with GPT 3.5 and GPT 4 for a tweet posted by Open AI, introducing the latest GPT-4o AI model.

Merlin AI - tweet replies (GPT 3.5 vs GPT 4)

Merlin AI features multiple options to generate replies, like casual tone, professional tone, positive reply, etc. Again, I couldn’t find much of a difference between the replies generated by both models.

Overall, if you need more refined responses, I would recommend using the GPT-4 model. But if you wish to save up on the AI credits, the outputs produced by GPT 3.5 are just as good.

Merlin AI could be a super-handy tool to boost your X (Twitter) game to the next level. Influencers, entrepreneurs, and social media enthusiasts should give it a try!

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Merlin For YouTube Summaries

For any YouTube videos that you watch, you can use Merlin to generate a quick summary to be displayed on the right panel. It generates a point-by-point summary along with the time stamp. Each point can be expanded to reveal more details.

Merlin AI for youtube summaries

Additionally, if you want to extract more data, it lets you chat with the summary. You can ask more questions about the video and it will give you informative replies.

Another cool feature is ‘Comment Key Points’. It clubs all the headings of the summary with the time stamp and adds them under the video.

Merlin AI for Youtube

If you frequently use YouTube for researching content or educating yourself, the YouTube Summarizer tool will save you a chunk of time! The GPT 3.5 model will work well to summarize your videos in any language of your choice. It works great in Hindi as well!

Merlin AI - YouTube video content repurposing

You can also use this tool to repurpose your old YouTube videos into tweets, LinkedIn posts, blogs, Twitter threads, etc. This is a super time-saving tool for content creators. For example, here’s how I created a blog post from my video on the topic ‘VPN Explained‘.

It generated a blog post with 400+ words and well-formatted headings. It also offers meta title, meta description, and keyword suggestions for your blog post.

Merlin AI - YouTube video to blog post

I have used dozens of YouTube summarization tools and extensions in the past. In my experience, Merlin AI is undoubtedly the best tool for YouTube summaries.

Merlin For Article Summaries

Fed up with scrolling through lengthy articles and blog posts? You can use Merlin AI to summarize them and get the major insights instantly. All you need to do is visit your web article and hit the Merlin extension.

Summarizing articles with Merlin AI

Next, click on the ‘Chat with this Webpage’ option and get the summary of the key points. You can select any AI language model of your choice. I got equally good results with both GPT 3.5 and GPT-4o models.

In my opinion, the Merlin Article Summarizer tool will save a lot of time for researchers and bloggers. They can use it to break down complex concepts and easily extract the key details about any topic.

Merlin AI Image Generation

In-Built Image Generator

The in-built AI image generator is accessible through the Merlin AI Chat. You can start by selecting the aspect ratio, number of output images, and the desired AI mage model from its list of 30+ image models.

Merlin AI Image Generation

The credits consumed are displayed under each image model. In general, all the image models consume 10x queries/image. However, Dall.E 3, being the most powerful image model, takes 60x queries to generate a single image!

I really liked the quality of image generation and the prompt adherence of Merlin AI. If you need professional-quality images for your projects or wish to experiment with different image models, you should try it out! However, the image generation credits are too high!

Bonkers by Merlin

Bonkers is the latest AI-image generation platform developed by Merlin AI that’s still under development.

What’s different with Bonkers? It features 38 AI image models that can be sorted by categories like Artistic, HD, Anime, Portrait, Realism, etc. Each AI model also has multiple tags to specify its use cases.

Bonkers by Merlin AI

Besides the regular aspect ratios, it offers extra aspect ratios as per different social media platforms like TikTok, YouTube, Instagram, Facebook, and more. If you want to exclude specific elements from your image, you can mention them under negative prompts.

It features 500 AI credits and consumes low credits for all AI models. However, it isn’t clear if this is the monthly or one-time limit.

For advanced image generation, you can surely use Bonkers. Alternatively, you can also check out these Best Free AI Art Generators to explore some free options.

Merlin AI Google Live Search Results

The Chrome extension of Merlin AI also integrates with Google to provide live search results. It works similarly to Google Search Labs and displays a summary of your search results, along with links to important resources.

Merlin AI - Google Live Search Results

What’s the difference? Well, you can ask as many follow-up questions as you want. It will scan through the Google SERP to provide relevant answers.

In my opinion, this tool won’t add much value to your research. The AI Overviews tool of Google is about to be launched soon, which will be more powerful than this tool.

Merlin AI Additional Features

AI Tools

If content creation is your primary purpose, you will find lots of pre-designed templates within Merlin AI. These cater to various use cases, including writing, images, SEO, marketing, etc. One of the most popular AI tools is the AI Essay Writer.

Merlin AI Content Detection

To generate an essay, you need to specify the education level, essay type, word count, essay stance (against, in favor, or neutral), desired language, and essay topic. For instance, here’s an analytical college-level essay in favor of the topic “Honey is healthier than sugar”.

Merlin AI Essay Generator Output

The output essay generated is highly detailed. I liked the structure and the analytical approach that it follows throughout the essay. You can use the GPT 3.5 model to get compelling essays with this tool.

AI Translation

Want to translate one language into another? Merlin AI has designed an AI Translation tool specifically for this. It features a list of 120+ languages. To start with it, you need to select a language pairing, the first being the input language and the second one your output language.

Merlin AI Translation

Next, you can enter up to 10k characters and select a tone from Amicable, Casual, Friendly, Professional, Witty, Funny, or Formal. Finally, you can choose GPT 3.5 or GPT 4 AI model and translate your text.

I think it works pretty well with the GPT 3.5 model. You can use it to save your AI queries.

AI Content and Plagiarism Detection

AI Content Detection is the latest feature added to Merlin AI. You start by entering content up to 10k characters.

Merlin AI Content Detection

The AI detects the percentage of AI content found in the text and highlights the sentences flagged as AI. However, it does not detect the AI model through which the content was generated.

Merlin AI Plagiarism Detection

Merlin AI also features a Plagiarism Detector that simply shows if plagiarism was found or not found in the content along with the original source. However, it doesn’t highlight the plagiarised sentences.

Overall, these are pretty average tools and need a lot of improvement. You can check out our curated list of AI Content Detection tools for in-depth insights and accurate detection.

Merlin AI Pricing

Merlin AI offers two paid plans along with a free plan. The free plan of Merlin AI offers 102 queries/day and lets you access its advanced features for free.

Merlin AI Pricing

If you need unlimited queries, you can upgrade to its Pro plan for $19/month. On this plan, you can generate unlimited content and images, chat with unlimited documents, get new AI models, and unlock advanced features like chatbot creation, AI content detection, call support, etc.

Additionally, if you want to share Merlin AI with more than 5 users, you can avail of the Team plan for $15/month. It includes all the features of the Pro plan along with team functionalities. Overall, you can opt for the Pro plan as it offers unlimited queries.

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Payment Methods

Merlin AI accepts payments made through all major credit cards, Cash App Pay, and US bank accounts. I hope they also introduce more convenient payment methods like UPI in the future.

Refund Policy

The refund policy of Merlin AI is slightly complex. There are multiple conditions highlighted as follows.

  • You can request a full refund if your credit usage is minimal or close to zero.
  • For a low usage refund, you need to contact their support within the first quarter of your subscription term. (E.g. within the first 7 days of a monthly plan.)
  • For annual plan refunds, only the credits for unused months will be refunded on a prorated basis.

Merlin AI AppSumo Deal

Merlin AI AppSumo Deal

Do you want to boost your content research and creation at pocket-friendly rates? Then check out the amazing AppSumo Deal of Merlin AI.

It’s priced at $69 for a lifetime, where you get 5000 AI credits/month. For extended credits, you can opt for its Tier 2 plan for $139. It’ll give you 12k AI credits/month along with the ability to attach your own API key.

Merlin AppSumo Deal

This essentially means you can use unlimited AI credits, but you’ll be charged a minimal amount by OpenAI for using their API key. The table below depicts the credit consumption for different AI models.

AI ModelCredits Consumed
GPT 3.51x
GPT 4o15x
GPT 425x
Claude 3 Haiku1x
Claude 3 Sonnet10x
Claude 3 Opus50x
Gemini 1.5 Pro30x
Gemini 1.5 Flash1x
Mistral Large25x

In my opinion, the AI credits are unreasonably high for Gemini 1.5 Pro. But if you need access to GPT 4o, Merlin AI is a pretty good solution with decent AI credits consumption.

Overall, the AppSumo Lifetime Deal of Merlin AI is a steal deal! Merlin is already a well-established product. Thus, it’s a very rare and special deal that they’ve offered as part of the AppSumo Sumo Day Sale.

If you are a content creator, blogger, educator, or marketer, Merlin AI could be a great alternative to popular AI writing tools like Copy AI, Jasper AI, etc.

Get Merlin AI AppSumo Deal

Merlin AI Customer Support

Merlin AI offers customer support in multiple ways, including email and live chat. The live chat support is pretty quick and offers informative replies. There are options to start a phone call and video call from the live chat window itself.

Merlin AI Live Chat Support

Besides that, Merlin AI also features a Merlin Wiki to explore its product features, an FAQ page, and a Discord community with 20k+ members to get your queries resolved

Merlin AI Pros

1) Friendly Interface

The user interface of Merlin AI is clean and well-organized. It features a dark mode for reducing eye strain and neatly arranged features for easy access.

2) Excellent Integration with Apps

Merlin AI integrates effortlessly with popular apps like Gmail, YouTube, LinkedIn, X (Twitter), and more. This helps you create rich content, summarize videos, articles, and web pages, and engage with others in a better way.

3) Decent Free Version

The free version of Merlin AI has a daily query limit of 102 queries. It also offers a trial of the advanced features of the Pro plan. I think the limits on the free plan are really good for testing out its real potential.

4) Multi-Model Approach

You get access to 10+ powerful AI content generation models like GPT, Gemini, Mistral, etc under a single roof. Apart from that, it features dozens of AI models for generating professional images.

5) High-Quality Images

The AI images generated with Merlin AI are superior in quality and adhere to the supplied prompt really well. The Bonkers app is a more advanced version to generate images with more precision.

6) Free GPT-4o Access

GPT-4o is the latest and most advanced version of the AI models developed by OpenAI. With Merlin AI, you can get access to it completely free of cost!

Merlin AI Cons

1) Average Social Post Creation

I personally didn’t like the social media posts created by Merlin AI for LinkedIn, Twitter, etc. They can work on refining their post creation and replies.

2) High Credit Consumption on AI Images

AI image generation consumes 10x credits/image for most AI image models. If the user is not careful, they may end up using up all the credits pretty quickly!

3) Extension Only for Chrome

The browser extension of Merlin AI is only available for Google Chrome. I hope they expand it to other browsers in the future.

4) Doesn’t Support Voice Input

Unlike ChatGPT and other AI assistants, Merlin AI does not support voice-based input for your queries. It is much more convenient than text input.

5) Limited Chatbot Functionality

Though Merlin AI lets you create custom chatbots, there are no additional options to customize how it functions. They should include options like purpose, tone, use case, etc while creating a chatbot.

Merlin AI Alternatives

1) Voila AI

Voila is an AI-powered assistant that’s available as a Chrome extension. Similar to Merlin AI, it’s super easy to use, has an affordable lifetime deal, and integrates well with social media apps.

But unlike Merlin AI, it doesn’t offer multiple AI models, or image generation capabilities, is not accessible through a website, and offers slow speeds. The pricing plans of Voila AI start from $8/month, where you get 3000 monthly requests.

2) Straico AI

Straico is a productivity suite powered by artificial intelligence. Similar to Merlin AI, it has an affordable AppSumo deal, multiple input methods, and lots of AI models, but high image generation credits. But unlike Merlin AI, Straico doesn’t work as an extension and features a cluttered interface.

Straico also offers more AI models, a variety of image generation styles, and a huge library of 130+ templates for content generation. As of now, you can get the lifetime deal of Straico AI for $59. It’ll give you 250k monthly words across 10+ AI models.

Who Should Use Merlin AI?

Merlin AI has a wide range of use cases. It can be valuable in fields like research, social media, content creation, coding, data analysis, language translation, and productivity.

If you belong to any of these fields and want to create high-quality content and images, get help with coding, create chatbots, or just enhance your productivity, you should definitely check out Merlin AI.

If you want an affordable and feature-rich tool with access to multiple models for producing quality content, you should check out Merlin AI.

Why Should You Trust Me?

I’ve been working full-time in the digital industry since 2015. In these years, I’ve used and tested hundreds of digital tools and AI tools. Since last year, I have focused my attention on AI writers, AI Art Generators, AI website builders, AI video generators, and so on!

Detailed reviews of these tools are available on my blog and YouTube channel. Testing out so many AI tools has given me the knowledge and experience to suggest the right one for your needs.


Merlin AI is a power-packed AI platform that can be a valuable asset for anyone looking to boost their productivity, especially when it comes to content creation. The Chrome extension is a real standout, offering features like email assistance, YouTube summaries, blog post summaries and more.

Is it perfect? Not quite. Social media integration and image generation credits could be improved. Social media functionality might not be as robust as you’d like, and generating images can eat through your credits quickly.

Though, when you consider the Merlin AppSumo lifetime deal, these limitations become less significant. This deal grants access to premium AI chatbots like GPT-4o, Claude & Gemini.

In conclusion, Merlin AI shines for its content creation and research capabilities, particularly with the included Chrome extension. If you’re an email user, content creator, or someone who frequently consumes online content, Merlin AI is definitely worth checking out.

The AppSumo lifetime deal adds significant value, making it a compelling option for those who want to unlock the full potential of AI-powered content creation. If you don’t like it, there’s a 2-month refund policy as well!

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If you’re interested in the field of AI, you can subscribe to our weekly newsletter where we cover AI news and free AI tools! This is Kripesh, taking your leave. I’ll be back with more such interesting reviews. Cheers!


1) Is Merlin AI safe to use?

Merlin AI follows the popular security protocols like SOC2, GDPR, and ISO 27001. This ensures the enhanced safety of your personal data.

2) Is Merlin AI a good Chrome extension?

Yes, Merlin AI Chrome extension works as an AI assistant. It integrates with popular social media and email platforms, and all the key features of its web interface on the extension.

3) What are the limitations of Merlin AI?

Merlin AI has a few limitations like average outputs for social posts and replies, lack of support for voice input, limited chatbot functionality, extended credit consumption on image generation, and availability of the extension only on the Chrome browser.

4) What are the payment options for Merlin AI?

Merlin AI accepts payments made through international credit cards, Cash App Pay, and US Bank accounts.

5) What makes Merlin AI unique?

The multi-model approach of Merlin, along with the ability to chat with PDFs, generate images, and create chatbots, makes Merlin AI unique.

merlin logo

Merlin AI Pros (+)

  • Friendly Interface
  • Excellent Integration
  • Decent Free Version
  • Free GPT-4o Access
  • YouTube Summary

Merlin AI Cons (-)

  • High Credit Consumption on AI Images
  • Doesn’t Support Voice Input
  • Average Output on Social Media

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