Compare Grammarly, GPT Reader, and AI Blaze: Which Extension is the Best?

	Grammarly	GPT Reader	AI Blaze
	Grammarly is a comprehensive writing assistant offering real-time grammar, spelling, punctuation, and style suggestions. With over 44 million users, it’s a trusted tool for enhancing your writing. Writing Education	Transform any text into natural-sounding speech with this free ChatGPT-powered text-to-speech tool. We've tested its capabilities on short articles and lengthy PDFs. AI ChatGPT	AI Blaze is a Chrome extension that enhances productivity with AI-powered templates, snippets, and dynamic commands, ensuring consistent messaging across platforms. AI ChatGPT
Key Features	Grammar Checker: Detects and corrects grammatical errors. Spelling Checker: Identifies and fixes spelling mistakes. Punctuation Checker: Ensures proper punctuation usage. Tone Detector: Analyzes the tone of your writing. Auto-Citations: Generates citations for online sources. Generative AI: Produces instant drafts, ideas, and replies.	Text-to-Speech Conversion: Natural-sounding AI voices powered by ChatGPT Document Support: Handles PDFs, Google Docs, and web content Audio Download: Option to save generated audio for offline listening Playback Controls: Adjustable speed, pause, and rewind functionality Multi-format Support: Works with pasted text, documents, and website content	AI Assistant: Instantly access AI help on any webpage with the sidebar feature for writing, editing, and more Custom Templates: Create and save personalized templates with dynamic fields for quick access Text Expansion: Type shortcuts to instantly expand into full messages, saving countless keystrokes Brand Voice Customization: Train the AI to write in your unique style and tone Dynamic Commands: Include variables like dates, form fields, and conditional logic in your snippets Team Collaboration: Share and edit snippets with teammates for consistent messaging Multiple AI Models: Choose between GPT-4o mini, GPT-4o, and Claude Sonnet depending on your needs Cross-Platform Compatibility: Works across Chrome, Windows, and macOS
Our Rating	8.8	9.0	9.0
Total users	53,595,659	8,308	40,000
Total ratings	47,084	69	133
Average rating	4.2 ⭐	4.5 ⭐	5.0 ⭐
Entry Level Price	Free	Free	Free
Chrome	4.5 42.8K+ ratings 38.0M+Users	4.8 55 ratings 7.0K+Users	5.0 133 ratings 40.0K+Users
Edge	3.9 1.1K+ ratings 14.9M+Users	-	-
Firefox	4.1 3.2K+ ratings 649.2K+Users	4.3 14 ratings 1.3K+Users	-
Safari	-	-	-
Features	9.5 Grammarly goes beyond basic grammar and spelling checks. It offers advanced features like tone detection, vocabulary enhancement, and generative AI capabilities. Compared to competitors, Grammarly provides a more comprehensive set of tools, making it a valuable asset for any writer.	9.2 The functional scope of GPT Reader is designed for a wide range of users and demonstrated many useful functions in the test. The voice quality is surprisingly good and offers a natural-sounding output. We particularly liked the comprehensive format support, which seamlessly processes everything from PDFs to web content. The control of the playback is also well implemented, making it easy to adjust the speed directly and individually. However, the function for downloading audio files stood out the most in the test. In theory, entire books can be converted and then downloaded as audio books. However, this was the only area where we had to make deductions, as the free ChatGPT version had limitations when processing longer texts or documents. We tried to convert a 300-page PDF and were able to process 22% of it, which corresponded to around 2 hours of audio. After this 22%, the free quota of requests on ChatGPT was reached, and the request was canceled.	8.8 The AI writing aid worked very well in the test with emails, customer responses, and short formats. We particularly liked the dynamic templates, which adapt according to user input. The extension can therefore be adapted for both commercial use, such as quickly replying to emails, and for everyday private use. From summaries to social media texts, this helped enormously in the test. In particular, learners such as students should have a special added value here, for example, through summaries that can be created quickly. Overall, AI Blaze already offers the possibility for almost endless possibilities; at most, there could be even more templates, as users may otherwise not exploit the full potential due to ignorance.
Performance	9.0 Grammarly performs well across different platforms, providing real-time suggestions without significant lag. The tool is reliable and helps improve writing efficiency.	8.3 The performance tests showed a mixed picture. For shorter texts and paragraphs, GPT Reader processes content quickly and delivers a smooth rendering. The application is fast and reliable for typical use cases such as articles or short documents. Here we tested self-written summaries for learning purposes. However, we encountered significant limitations with larger files, as it is not possible to complete processing due to the limited number of requests. The option of pausing and then resuming would help here. In addition, the process takes a very long time for larger files; the extension needed around 40 minutes for around 75 pages of a PDF. The limitations of the ChatGPT API particularly affect the processing of longer documents such as entire books. This is currently only possible with a premium version of ChatGPT.	8.9 In our test, AI Blaze worked reliably on most websites and in various applications. The only thing that was immediately noticeable at the beginning was that the functions do not work in the Chrome Store, so websites may prevent access for the extension, but this did not otherwise occur in the test. The text expansion works immediately, and the AI-controlled functions generally respond quickly, depending on the model selected. When using the most advanced AI models for complex tasks, there were occasional short delays, but these were minimal.
Design	8.5 The design is clean and intuitive, making it easy to navigate. The color-coded underlines for suggestions are helpful, and the interface is user-friendly. However, some users might find the pop-ups slightly intrusive.	9.0 The design of GPT Reader is clean and professional, with an intuitive layout that makes navigation effortless. The fact that there is even a dark as well as a light mode shows that the different user preferences have been taken into account. The controls are logically arranged and easily accessible. Even though the extension is designed for functionality, the design is not forgotten.	8.8 The clear, intuitive user interface should also make AI Blaze possible for private users who are not so tech-savvy. The integration into the sidebar is very well done and offers a seamless integration into the design of the browser. There is little that can be customized visually, but this should hardly be necessary. Overall, the design focuses on functionality while maintaining an appealing appearance.
Value for Money	8.5 While Grammarly offers a free version, the Premium plan is relatively expensive. However, the advanced features and comprehensive feedback justify the cost for those who need a robust writing assistant. Grammarly is the priciest option for a reason—because, in our view, it's the best writing tool available in its category. If you're looking for the best writing assistant, go for the Premium plan, you won't regret it!	8.9 Currently, GPT Reader offers a very good price-performance ratio, as all functions are available completely free of charge. We found no hidden costs or unexpected limitations in the free version. The features should be sufficient for most users; the only thing to note is the limited number of requests per hour that ChatGPT allows. If you need to convert entire books into one, you will need a premium version of ChatGPT. It should also be mentioned that the extension already indicates that the download function may be offered in a paid version in the future, which could influence this rating in the future. At the moment, however, it is a very good offer in the text-to-speech sector.	9.0 In this area, a clear distinction must be made between private and commercial users. For the private user, AI Blaze already offers enough functionality for most people in the free plan. Here we also appreciate the Academic Edition, which offers students and teachers extended, free access. The Pro plan could be too high for private users at $20/month with annual billing. For businesses, however, AI Blaze's Pro plan offers exceptional value compared to similar productivity tools. The time savings alone can justify the investment for most users. For those who want to work in teams, AI Blaze offers the Business plan for $24/user/month. This includes additional comprehensive functions for collaboration and improved communication processes. Compared to alternatives, AI Blaze offers a competitive feature set at a reasonable price for businesses. The ROI is clear after just a few days of regular use, especially for those who frequently write similar messages.
Ease of Use	9.0 Grammarly is straightforward to use, with a minimal learning curve. The browser extension integrates seamlessly with various platforms like Google Docs and Gmail, allowing you to get started right away.	8.7 In terms of user-friendliness, GPT Reader scores very well. Users of all technical levels should have little problem simply converting text to audio. The user interface is self-explanatory, and all functions are displayed immediately. The only negative point is that a separate ChatGPT registration is still required, and an error message appears if the ChatGPT requests are exceeded, which can lead to confusion.	9.0 For basic functions such as using templates and simple shortcuts, AI Blaze is extremely straightforward. New users can start using the ready-made templates within minutes, and they are well-explained. If you don't want to use the predefined shortcuts, you can create your own commands immediately, which makes it easier to remember the shortcuts in everyday life. We found the shortcuts intuitive and time-saving once you have memorized them. The search function makes it easy to find the right snippet quickly, even as the library grows. The advanced functions do require a certain amount of learning, but the basic functions are easily accessible straight away.
Security & Privacy	8.0 Grammarly takes privacy seriously, with stringent security measures in place. While an account is required, the company assures users that their data is not sold or made public. However, some users may still have concerns about data processing.	9.7 In our security analysis, GPT Reader showed a strong commitment to protecting user privacy. The extension only collects data from user-reported bugs and feedback. We appreciated the transparent privacy policy, where the user can read specific points.	9.7 AI Blaze takes security very seriously and holds a SOC 2 certification, which confirms that a company has implemented appropriate controls and procedures for IT systems, data protection, and data security. The company's privacy policies are transparent from the user's perspective in terms of how data is handled, and no user data is sold to third parties. The Business and Enterprise plans offer additional security features such as SAML SSO integration and audit logs. Choosing between different AI models gives users more control over their data. The company is transparent about its use of cookies and analytics and provides clear options for managing settings. There is also the option to allow the extension only to use marked areas for answers, normally, the AI uses the entire website content to have a better data basis.
Conclusion	In our eyes, Grammarly is the best choice for anyone who wants to write professional articles or other things in English. Even though Grammarly has an expensice price tag, you can't get anything better on the market. We have been using Grammarly for a long time now. And even in the world of ChatGPT and other AI tools, Grammarly is just super handy and helpful. For us, the Premium plan is worth every penny. This only applies as long as you are in the English-speaking world. If you need other languages, we would recommend LanguageTool instead.	GPT Reader is a promising text-to-speech extension based on ChatGPT voices. The easy-to-understand voices, combined with the fact that it is completely free, set it apart from conventional TTS tools. The extension can process various document formats. Both PDFs and copied web articles can be converted, but it has its limitations with longer texts. For example, a 300-page PDF was only partially converted in the text due to ChatGPT's limitations, which still resulted in about 2 hours of audio. The tool is very user-friendly and supports multiple languages. This extension is a must for anyone who wants to listen to texts.	AI Blaze shows that it is an impressive productivity tool that delivers on its promise of saving time and optimizing communication. The user interface is intuitive and well-designed, making it accessible even for those without experience with AI tools. You can tell that companies in particular are also a target group. The ability to customize templates and train the AI to match your brand's voice is particularly valuable here. While the free version is somewhat limited, the affordable pricing of the paid plans makes it accessible to businesses of all sizes. The time savings alone justify the investment for teams that frequently send similar messages or create repetitive content. Individuals, however, may find it too expensive.
	Install Grammarly	Install GPT Reader	Install AI Blaze
Our Recommendation	In our comparison between Grammarly, GPT Reader, and AI Blaze, GPT Reader and AI Blaze both came out on top, each scoring 9. Grammarly is the most widely used, with over 54 million users and 47k+ reviews, but GPT Reader and AI Blaze outperformed it in our review. User reviews reflect our findings. Notably, AI Blaze has the highest user rating in the Chrome Web Store at 4.98, which supports its strong performance in our review. In the end, the differences between these extensions are minimal, so your choice may come down to personal preference or specific features. Looking for the richest feature set? Grammarly stands out with a rating of 9.5. On the other hand, AI Blaze lags behind in this area with a rating of 8.8. Need top performance? Grammarly stands out with a rating of 9. On the other hand, GPT Reader lags behind in this area with a rating of 8.3. Design lovers, take note: GPT Reader stands out with a rating of 9. On the other hand, Grammarly lags behind in this area with a rating of 8.5. Want to get the most for your money? AI Blaze stands out with a rating of 9. On the other hand, Grammarly lags behind in this area with a rating of 8.5. Ease of use? It's a tie: Grammarly and AI Blaze. In the Ease of Use category, Grammarly has scored a fantastic 9. It is very easy to use, with an intuitive interface that facilitates a smooth user experience. For privacy, it's a tie: GPT Reader and AI Blaze. In the Security & Privacy category, GPT Reader has scored an outstanding 9.7. It provides top-tier security and privacy features, ensuring user data is exceptionally well protected. There's no single winner, so check the categories above to find your best fit.