The Best AI Email Generators in 2025 [Free + Paid]

As we enter 2025, AI continues to revolutionize how businesses communicate, and email is no exception. AI-powered email generators have become invaluable tools in almost every industry. These intelligent assistants not only save time but also help craft personalized, engaging, and professional messages at scale.

In this blog, we’ll explore some of the top AI email generators available this year, comparing free and paid options to suit every need. From drafting quick responses to creating complex email campaigns, we’ve got you covered with the best tools to boost your inbox and enhance your communication strategy.

The 10 Definitive AI Email Generators to Try for Free or at Low Cost

We’ve carefully selected the top 10 AI email generators so you can check its features and compare their benefits and downsides, and choose the best according to your needs.

1. Gmelius AI email tagging (paid)

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Gmelius offers AI-powered email tagging as part of its suite of features, to streamline email management and enhance productivity. The AI automatically analyzes incoming emails and assigns relevant tags based on content, context, and user preferences, only by using the first message of the email. 

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This helps users quickly categorize and prioritize messages without manually sorting them. It also contains an analytics feature to check how many times the tag was applied, how long it took to respond and to close that email, and other vital stats .

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Gmelius takes its privacy policy seriously, and it’s deeply committed to protecting user data and upholding privacy standards. The company uses Google’s internal models to ensure that data is securely handled during transit, with all information being discarded once it's no longer needed.

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Pricing: From $10 per user/month, if annually billed. 

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2. Google Gemini for email generation (free with Business plans) 

Google Gemini, integrated into Gmail, offers powerful AI-driven email generation tools designed to streamline communication. Available with Google’s Business plans, Gemini can help users draft emails quickly, respond to messages more efficiently, and personalize outreach with just a few prompts.

The AI understands context, tone, and user preferences, making it ideal for both casual and professional correspondence. With Gemini, users can automate repetitive tasks, improve email productivity, and craft engaging content in seconds. 

Pricing: From $20 per user/month

3. Microsoft Copilot in Outlook (paid)

Microsoft Copilot in Outlook has been designed to enhance email productivity and streamline communication.

Copilot assists users by drafting emails, summarizing long threads, and generating quick replies. It analyzes context and tone, ensuring responses are personalized and on-brand. By automating routine tasks, Microsoft Copilot helps users save time, stay organized, and improve efficiency in managing their inboxes.

A key limitation of this tool is that it is only accessible with paid Microsoft 365 plans and it is usually more expensive than other AI email generator tools. 

Pricing: From $30 per user/month, if annually billed.

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4. ChatGPT (free and paid)

ChatGPT is probably one of the most renowned AI email generators in the market. It streamlines email writing, offering customization, efficiency, and clarity. Ideal for varied email styles, it is user-friendly and constantly improving.

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One of the best things about ChatGPT is that it is very easy to access: you can use it on the web, iOS, Android, Mac, and Windows. If you sign up for an account, most of its features will be available for free; however, if you want to customize it and carry out more complex tasks, you’ll need to upgrade to the paid version.

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The tool's chatbot feature makes it highly versatile, offering answers to virtually any query. However, this versatility can also be a drawback, as it doesn’t provide much guidance for creating effective prompts. Like other AI email generators, the more detailed your prompt, the more relevant and tailored the content will be.

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Pricing: $20 per user/month

5. Claude (free and paid)

Claude is an advanced AI language model developed by Anthropic, designed to assist with a range of tasks, including generating text, answering questions, supporting creative workflows, and creating code.

It is available in both free and paid versions. Naturally, the paid plans provide enhanced features, faster responses, and priority access. However, user reviews indicate that even with the paid plan, there is a message limitation. To overcome this, users often need to use workarounds, such as restarting the chat, waiting a few hours, or breaking long conversations into smaller chunks to continue using the service.

Claude emphasizes safety, aiming to provide helpful, reliable, and ethical interactions, making it a versatile tool for businesses and individuals alike.

Pricing: Free plan, or from $18 per user/month, if annually billed.

6. Jasper AI (paid)

Jasper AI is an AI writing tool designed for content creation, especially for bloggers and marketers. Jasper generates original content suitable for blogs, marketing copy, and product descriptions simply by writing basic information.

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Particularly, one of the strongest features about Jasper AI is that once you start using it, it learns about your company and starts generating branded content, according to your marketing plan. This reduces the need for extensive edits to AI-generated content before use, saving time while ensuring the brand's voice is consistently reflected across all communication.

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It contains several templates for you to choose the kind of content you want to craft. 

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Pricing: From $39 per user/month

7. Shortwave (paid)

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Shortwave is an AI email generator assistant that can write emails, improve drafts, and schedule meetings, ensuring that important messages don’t get lost in crowded inboxes. 

By analyzing email content and context, Shortwave AI helps craft personalized replies, flag urgent tasks, and streamline workflows.

Important to take into account: It only works with Gmail, and doesn’t have a desktop app.

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Pricing: From $14 per user/month, if billed annually.

8. Copymatic (paid)

Focused on content creation for marketers and advertisers, Copymatic helps you write high-quality engaging and unique content. 

Similar to Jasper AI, you can choose from an array of AI tools of email generation, long-form content, social media ads, landing pages, short copies, etc. 

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It includes some interesting features like grammar check, sentence rewriting, and an adjustment for the tone you want to communicate.

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One of the cons of this tool is that it is not possible to integrate keyword research tools into your content, which can make conversions a little more difficult. 

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Pricing: $19 per user/month, billed yearly

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9. SmartWriter (paid)

SmartWriter is an AI-powered writing tool designed to help users create personalized content quickly. It specializes in generating tailored emails, blog posts, and product descriptions among others, with a focus on personalization and efficiency.

The idea behind Smartwriter is to personalize outreach, enhance engagement, and boost the effectiveness of your sales and marketing strategies. It assists businesses with various objectives, including B2B sales, social personalization, and crafting deep-researched cold emails, by automating the creation of engaging and contextually relevant content.

However, some of their reviews mention concerns regarding customer support and an elevated price-to-value ratio.

Pricing: $49 per user/month with an annual subscription

10. Superhuman (paid)

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Superhuman is an email management tool designed to enhance productivity. It focuses on providing a faster, more efficient email experience through features like smart inbox sorting, AI-powered email triage, and keyboard shortcuts. 

Superhuman helps users manage their emails more effectively by offering tools for prioritizing important messages, snoozing emails, and easily tracking follow-ups. 

It is primarily aimed at professionals who need to manage large volumes of email quickly and efficiently. It is similar to Shortwave, but it works with both Gmail and Outlook. 

Pricing: From $25 per user/month with an annual subscription

Pros and Cons of AI Email Generation

Pros

Some of the benefits of using AI Email Generation are:

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• Time-saving: AI-driven email generation tools can quickly draft messages, saving significant time on repetitive tasks. With the ability to generate responses in seconds, these tools eliminate the need to write each email from scratch.
• Consistency: These tools ensure consistent tone, style, and language, aligning with brand voice across all communications. This helps maintain a cohesive message across multiple platforms.
• Efficiency: Automated responses and follow-ups help streamline workflows and improve productivity. With AI handling routine communications, teams can focus on higher-value tasks.
• Error reduction: AI tools often reduce grammatical mistakes and improve overall email quality, making sure you are not missing anything. Additionally, they can help optimize phrasing, ensuring your emails are professional and clear without time-consuming revisions.

Cons

The challenges you might face include: 

• Over-reliance: Relying too heavily on AI could reduce the human touch, making emails feel robotic or impersonal. Also, it could lead to less personalized or overly generic emails. 
• Limited creativity: While AI can generate standard content, it may struggle with creative or complex messaging and the content might sound repetitive.
• Privacy concerns: Depending on the platform, data used to generate emails may pose some privacy risks. 

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How to Choose the Best AI Email Generator

Selecting the right AI email generator will depend on your unique requirements, your company’s industry, and the features you are looking for. However, here are three essential factors to consider when choosing the best one for your business:

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1. Evaluate customization and personalization options: Look for a tool that allows you to customize the tone, style, and content of your emails. Personalization is key to engaging your audience, so choose a generator that can adapt to your brand voice and tailor messages for individual recipients.

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2. Consider integration with existing tools: Make sure the AI email generator integrates well with your current email platform (e.g., Gmail, Outlook) and CRM systems. Seamless integration can save time and improve workflow efficiency.
   
   

3. Review privacy policies and security measures: It’s crucial to examine the privacy policies of any AI email generator you consider. Different platforms have varying security protocols and data handling practices, so make sure you understand how your data will be used, stored, and protected to ensure it aligns with your privacy requirements beforehand.

Conclusion

AI email generators are revolutionizing business communication by saving time, ensuring consistency, and boosting productivity. With both free and paid options, tools like Gmelius tagging, Google Gemini, and Microsoft Copilot are the best options in the market and offer diverse features, from quick responses to personalized campaigns. The right AI email generator can streamline your email strategy while maintaining a personal touch.

Looking to transform your email management? Sign up and book your demo!

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