12 Best AI Email Assistants For Next-Level Productivity [2025]
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Imagine a world where your inbox is no longer a stress-inducing nightmare but rather a well-organized, time-saving haven. Welcome to the future of productivity – already possible with the help of these best AI email assistants in 2025!
In this article, we’ll explore the top 12 tools powered by artificial intelligence that’ll help you regain control of your emails, streamline your workflow, and skyrocket your productivity.
I’ve carefully curated this list of innovative email tools, each designed to tackle unique email challenges – be it inbox organizing, crafting responses, or generating email campaigns and newsletters.
Quick links for the best AI email assistants:
- SaneBox for a neatly organized and clean inbox
- Writesonic for generating engaging emails
- HoppyCopy for smart email campaigns and sequences
- TextCortex for custom-trained assistant personas
- Mailbutler for AI email drafting and responding
- GetResponse for quick email creation
- WriteMe to maximize email productivity
- Grammarly to write clear, error-free emails
- Encharge for killer subject lines
- Reply.io to generate first-touch and follow-up emails
- Missive for team collaboration
- Benchmark for smart email sending
What is an AI email assistant?
An AI email assistant is a cutting-edge tool that leverages artificial intelligence to help you manage your inbox more effectively. It’s a smart helper that can automate tasks, generate emails, suggest subject lines, and even improve your own writing and marketing skills.
A good AI email assistant adapts to your unique communication style and does a great job of making your email management an easy and pleasant activity.
With the power of AI at your fingertips, you’ll no longer see your inbox as a source of stress but rather as a well-organized, efficient hub for communication and growth.
How can AI email assistants make you more efficient?
Depending on your current work routine, there are many ways an AI email assistant can make your life easier. Here are some of the best use cases:
- Organize and declutter your inbox for easy navigation
- Ensure clear, error-free communication with advanced writing assistance
- Craft attention-grabbing subject lines for better open rates
- Improve your email writing skills with real-time feedback
- Personalize cold emails for higher response rates
- Maximize email productivity with time-saving features
- Enhance team collaboration on shared inboxes
- Optimize email sending times for maximum impact
- Streamline customer support with faster, relevant responses
In 2025, AI email assistants are already powerful enough to truly take your productivity to the next level and produce results at a rate that was never possible before.
A fresh study that compared the performance of more than five thousand customer support agents working with and without AI tools found that using AI assistants increased average productivity by 14%.
Just imagine the level of productivity boost if everyone knew about all these mind-blowing AI email assistants!
Are you ready to experience the transformation and harness the power of AI to take back control of your inbox? Let’s dive in and explore the future of email management!
What are the best AI email assistants in 2025?
Using an AI email assistant is a game-changer for both personal and professional productivity.
Imagine being able to manage your inbox effortlessly, feeling less stressed, and having more time to focus on your more important tasks!
Here are the top 12 AI email assistants to power up your email game:
1. SaneBox
Best AI email assistant for staying organized
SaneBox is an AI email assistant designed to streamline your inbox, ensuring that important messages are never buried.
The powerful AI filters within SaneBox sort your emails, categorizing unimportant messages and distractions into designated folders like SaneLater (for distractions), SaneNews (for newsletters), and SaneCC (for FYIs not addressed directly to you).
This allows you to prioritize the most relevant emails while still being able to check less urgent folders at your convenience.
SaneBox customers experience a remarkable boost in productivity, saving an average of over 100 hours per year by utilizing this innovative email management tool.
SaneBox AI assistant also offers features like Do Not Disturb scheduling for the focused hours, email snoozing to deal with less important stuff later, and custom folder creation for effective email management personalized to your needs.
Best Features of SaneBox
Pricing
Sanebox offers three plans called Snack, Lunch, and Dinner, and the ability to pay monthly, yearly, or biyearly.
Each of the plans comes with a free 14-day trial that doesn’t require a credit card.
There is also an extra-light plan called Appetizer, which allows you to manage one email account with limited functionality for $24 a year, or just 7¢ per day.
I’m generally quite organized with my emails, but I tend to get distracted by incoming mail a lot during the day, and Sanebox solved it very elegantly.
With SaneLater, Do Not Disturb, and multiple Snooze folders, I got an arsenal of convenient features that help me stay focused on my important work while still being able to take timely actions when required.
2. Writesonic
Best AI email assistant for generating compelling emails
Writesonic stands out as a powerful Swiss army knife AI writing tool that, among others, has the ability to create engaging email content. With its Email generator, you’re just a few clicks away from having a persuasive email copy that catches the eye and turns leads into customers.
Simply describe your recipient and the intention of the email, and Writesonic will generate three versions of a compelling email you can choose from.
Looking to increase your email open rates? Writesonic’s Email Subject Line Generator is a gem, churning out unique and catchy subject lines in seconds.
If you’re reaching out to a global audience, you’ll appreciate the tool’s ability to whip up email copy in more than 25 different languages.
If your job requires you to do a lot of outreach, you’ll love the Writesonic’s Cold Email Generator. This feature ensures your cold emails stand out and get the attention they deserve.
And for those moments when you need a compelling call to action, the Call to Action Generator has your back, helping you craft CTAs that drive results.
Best Features of Writesonic
Pricing
Writesonic offers a free plan that allows you to generate 10,000 words per month, which, for some people, can cover all their email needs.
If you need more words, there is an unlimited Freelancer plan for $20 a month, reduced to $16 if you pay yearly.
One caveat, though: both Free and Freelancer plans only give you access to GPT-3.5, which may be enough or not, depending on your email use.
If you want access to GPT-4, there is no Unlimited plan, but they have a Small Team plan with flexible pricing based on the target monthly word count.
3. HoppyCopy
Best AI assistant for email campaigns & sequences
HoppyCopy is an AI-powered tool designed to revolutionize the way you approach email marketing. With its primary focus on speeding up the content creation process, HoppyCopy can almost instantly generate content for a myriad of email marketing campaigns, from drips to newsletters.
The tool offers over 50 AI templates for email generation that are based on science-backed formulas and proven copywriting methods.
Whether it’s a holiday campaign, a drip sequence, or any other type of email, HoppyCopy has you covered. It’s especially handy for those times when you’re aiming to create high-impact emails, whether that’s for product launches, lead nurturing, or outreach messages.
With HoppyCopy, you can quickly create a visually appealing, image-rich newsletter that will captivate your subscribers and leave a lasting impression.
If you’re planning a comprehensive campaign that spans multiple days, HoppyCopy can generate sequences tailored for product launches, promotions, and other significant events.
Another noteworthy feature is the Content Converter. It allows you to seamlessly repurpose content, whether that’s converting blogs into emails or emails into social media posts.
And if that’s not enough, HoppyCopy can also help you optimize your email delivery with the spam check feature. It automatically detects potential spam keywords in your emails and suggests alternative wording to ensure your emails reach the intended inbox.
Best Features of HoppyCopy
Pricing
HoppyCopy offers a 7-day no-risk free trial to explore the tool’s capabilities without committing to a plan or even putting your credit card on the line.
If you end up impressed and want to continue, plans range between $23-$99 per month and can generate you between 20,000 and 300,000 words of email copy.
4. TextCortex
Best AI email assistant for day-to-day productivity
TextCortex is a powerful AI-driven email assistant tailored to amplify your communication efficiency. Beyond generic assistance, this tool learns and aligns with your distinct writing style, ensuring every email you draft feels genuine and impactful.
Unlike HoppyCopy, which has pre-defined email templates, TextCortex is a chat-based assistant that can do pretty much any text-based task for you.
You can ask it to craft a reply to a specific email, improve your own email by fixing mistakes or changing the tone, or craft a new email based on your unique voice and preferences.
With a chat-based assistant, you are not limited to specific use cases. For example, you can talk to your TextCortex assistant to brainstorm your target audience’s pain points and then ask it to create anything from welcome sequences to promotion email campaigns based on that analysis.
TextCortex offers a Chrome extension that you can use across the internet, for example, to generate emails or reply to incoming mail directly inside Gmail.
With TextCortex, you essentially get a tailored AI companion dedicated to refining and enhancing your email communications.
Best Features of TextCortex
Pricing
TextCortex offers a free plan with limited access to all features, so you can give it a go and see if it fits your needs as an email assistant.
Before you sign up for more, you need to decide how much AI generation you need per month because TextCortex has a flexible payment structure with gradual increases.
For example, the cheapest plan is $5.59 per month (yearly) and allows 150 AI generations, which translates into up to 12,500 words, depending on how you use it.
Paying $23.99 per month will give you access to 1000 generations, which for many people will cover all their email and other day-to-day needs.
There is also an Unlimited plan that costs $83.99 per month and doesn’t restrict your AI use in any way. If you are an entrepreneur or a professional who uses email a lot or has other content generation needs, this plan is a no-brainer and is considerably cheaper than most AI writing tools on the market.
For paid plans, there is no free trial, but they offer a 5-day moneyback guarantee if the tool doesn’t match your expectations.
5. MailButler
Best AI assistant for efficient emailing
If emails are taking up too much of your day, Mailbutler is here to help.
Designed to work seamlessly with Outlook, Gmail, and Apple Mail, this AI-powered email assistant does more than just help you write emails: it takes multiple chores off your plate, making your email life a whole lot easier.
What I really like about Mailbutler is its Smart Assistant. With a few clicks and some key phrases, you can draft emails, fire off responses, and even get a quick summary of the latest email thread. It’s such a time-saver.
Beyond just composing and replying to emails, Mailbutler offers a wide range of features you’ll want to check out, such as email tracking and smart sending. It’s all about making you more efficient when dealing with that never-ending inbox.
Compared to what you get with built-in email features, or even with Gmail’s new AI assistant, Mailbutler clearly has the upper hand, especially when it comes to smart automation and managing tasks.
Best Features of MailButler
Pricing
Mailbutler doesn’t have a free plan, but it offers a generous 14-day free trial to see what it’s capable of.
This email management tool has multiple pricing plans, but AI assistance is only included with Smart or Business plans, starting at $14.95 per month.
Based on my analysis of their features, the Smart plan should be enough for most solopreneurs, freelancers, and small teams and is great value for the price.
6. GetResponse
Best AI assistant for creating engaging emails
GetResponse, widely recognized as one of the best email marketing tools ever, now offers an AI-powered email generator. It allows you to create captivating emails in a matter of seconds.
By leveraging the latest GPT technology, it optimizes email marketing efforts with industry-specific and goal-oriented subject lines and content.
This tool has been proven to reduce email creation time by 85% for GetResponse customers.
With GetResponse AI email assistant, you can create an entire email by simply providing a few keywords and choosing your industry, tone, and design direction. The AI-generated email and subject line will be ready in less than a minute, allowing for quick customization and ready for sending.
Best Features of GetResponse
Pricing
GetResponse offers a variety of affordable plans that depend on your email marketing purposes and the size of your email list.
The best option is hopping on a 24-month plan, as it gives you 30% off compared to the monthly price. If you choose a longer plan, make sure to account for potential list growth and not underestimate yourself.
Note that the AI email generator feature is not available in a free plan. However, you can use it on any paid plan, including the cheapest one, which costs about $13 per month if paid biennially.
7. WriteMe
Best AI email assistant to be more productive
WriteMe is an AI-powered email generator designed to help users create effective and compelling emails for various purposes, including newsletters and formal correspondence.
Email generation is just one of the 40+ writing use cases WriteMe can help you with. Make sure to try the other ones too, and find ways to be even more productive.
This AI writing assistant allows users to craft unique emails in just four simple steps, with the ability to explore different writing tones and generate content in multiple languages.
From my experience, WriteMe demonstrates much cooler abilities compared to Gmail’s native AI features.
Just input the key points of what you want to say, choose the preferred tone, and get a beautifully written email in seconds.
Best Features of WriteMe
Pricing
WriteMe offers four monthly plans depending on your writing needs. Since it’s a universal AI writer, the plans are based on how many words it can generate for you every month.
There is a Free plan with up to 2,000 words and up to 5 projects if you want to test the tool’s capabilities. Paid plans range from 30k words per month and 10 projects ($25) to 150k words and unlimited projects ($50).
If you ever need to generate more words, you can purchase an additional 10k words for $5-10 depending on the plan you got.
8. Grammarly
Best AI email writing assistant for clear communication
Grammarly is widely known as the best tool for error-free writing, and recently this tool has been taken to the next level as they introduced an AI assistant.
GrammarlyGO is an AI-powered communication assistant that integrates generative AI with the Grammarly experience to support users across various digital writing spaces.
With almost 500 existing prompts, such as “Paraphrase it,” “Make it persuasive,” “Sound apologetic,” or simply “Improve it,” GrammarlyGO can completely change your email writing experience.
It is designed to unblock ideas and enhance productivity for both individuals and teams.
By selecting the text and clicking the green lightbulb icon, you can write amazing emails and reply to incoming ones better and faster with the AI co-creator that understands your context and goals.
Best Features of Grammarly
Pricing
GrammarlyGO AI assistant is included in all Grammarly plans, including the Free one. Each plan has a monthly allowance of prompts, starting with 100 prompts/month on a free plan and up to 1000 monthly prompts per user on the Entreprise plan.
The most common paid Grammarly plan, which is the one I also use, costs $12.00 per month.
9. Encharge
Best AI email assistant for unique subject lines
Encharge is a free AI email subject line generator that helps you create captivating and attention-grabbing subject lines for your emails.
By harnessing the power of AI, Encharge ensures your emails catch your recipients’ attention and stand out in their inboxes, leading to higher open rates and increased engagement.
Say goodbye to generic and repetitive ideas from basic generators. Encharge AI email assistant utilizes advanced GPT-3 technology to craft unique and compelling subject lines tailored to your needs.
With no cost involved, you can take advantage of this intelligent tool to optimize your email marketing efforts and capture your audience’s interest effectively.
Best Features of Encharge
10. Reply.io
Best AI email assistant for first steps and follow-ups
Reply.io’s AI Email Assistant is a powerful tool designed to streamline your sales email process by generating personalized and human-like emails in just seconds.
With its AI-backed algorithm, which is powered by the GPT-3 language prediction model, you can create emails that maximize open and reply rates.
This intelligent email assistant helps you craft first-step emails and follow-ups and instantly integrate them into your sequences without having to switch between apps.
The Reply.io AI Email Assistant offers real-time feedback through its Email Quality Check feature, ensuring your emails are optimized for the best response rates.
This smart email management tool not only helps you create compelling messages but also evaluates the quality of your emails based on factors such as length, readability, and spam words.
With this innovative assistant at your disposal, you can fully focus on connecting with your leads and closing deals.
Best Features of Reply
Pricing
Reply platform has two plans: starter and professional, both of which include the AI email assistant and a bunch of basic tools such as email sequences, performance tracking, reports, and an AI Chrome extension.
Professional plan allows you to manage two mailboxes instead of one and offers quite a few useful features on top of that, such as mailbox warmup, more advanced reports, various automations and integrations, meeting management, and more.
There is also a 14-day free trial to check out all the features before committing to the tool. It doesn’t require a credit card and lets you see everything Reply is capable of and then make a decision.
11. Missive
Best AI email assistant for team collaboration
Missive App is an easy-to-use tool that combines all your email accounts, chats, and tasks in one place, making your work smoother and helping your team work together more easily.
With its strong features, you can handle multiple email accounts, work together with your team on emails in real time, and quickly set tasks and follow-ups to make sure everything gets done.
Missive email assistant integrates with OpenAI to quickly compose new and improve your existing email messages, from changing the tone to fixing grammar mistakes.
This all-in-one platform has many helpful functions, including shared email inboxes, working together on emails with your team, and built-in chat.
Missive App also has special email management features, like putting emails on hold, scheduling emails to be sent later, and viewing email conversations, to help you stay organized and efficient.
Best Features of Missive
Pricing
Missive has a Free plan that allows managing up to 3 users and 2 shared accounts. This may be enough for solopreneurs or small teams who are just starting out and don’t have a huge email workload.
The main drawback of the Free plan is that it has a short memory, meaning you can only manage the last 15 days of your correspondence.
Starter plan costs $14 per month and allows 5 accounts with 6 months of historical data. Productive plan seems to make more sense: for just $4 more per month, you get up to 50 users with unlimited history, integrations with popular platforms, and various automations to really reach that next level of productivity.
12. Benchmark
Best AI email assistant for smart sending
Benchmark offers a quick and powerful way to grow your audience and gain new customers through smart email marketing.
It uses artificial intelligence, marketing automation, machine learning, and more to make your email campaigns as effective as possible. You can easily reach your audience with confidence, knowing that the AI tools are doing the hard work for you.
This handy email assistant offers features like Smart Content, which turns your ideas into unique email copy with a single click, and Smart Sending, which ensures maximum deliverability based on the perfect sending timing for each contact.
Benchmark also provides a variety of email templates for different occasions, making it simple to create mobile-responsive, branded emails that your subscribers will love.
You can build your subscriber list with forms, pop-ups, and landing pages, or integrate with your favorite sales and marketing tools to eliminate context switching and further improve your workflow.
Best Features of Benchmark
Pricing
Benchmark offers a scalable pricing system depending on the size of your email list and the features you need.
There is a Free plan if you want to try things out: it allows you to manage up to 3,500 emails per month limited by 500 contacts, and offers features like performance tracking and building a segmented email list.
When your business grows, the price grows too. For example, here is how the pricing will look like if you need 15,000 contacts.
If you already handle more than 25,000 contacts, you can look at the Enterprise plan or contact Benchmark’s support to figure out a perfect custom solution for your needs.
When it comes to AI assistant features, Smart Sending is available in all plans, even the Free one, and you even get 25 credits to play with the Smart Content feature for free. All the other plans allow 100 email writing credits per month.
Can an AI email assistant replace a human assistant?
While AI email assistants offer impressive capabilities and can significantly improve your email management, they are not designed to completely replace human assistants.
AI email tools excel at automating repetitive tasks, handling routine correspondence, and facilitating all your email-related processes, but they might struggle with understanding the bigger-picture tasks or emotionally nuanced situations.
Human assistants bring valuable qualities such as empathy, creativity, and interpersonal skills that are vital for higher-level decision-making and relationship management.
In essence, AI email assistants should be seen as powerful tools that complement human assistants, helping them work more efficiently.
Final thoughts on using AI email assistants
That’s it: I introduced you to the very best AI email assistants of 2025, each designed to supercharge your productivity and transform your email experience.
Remember, the key to success when it comes to email management is choosing the right tool that aligns with your unique needs and improves your workflow.
These AI email assistants can help you stay organized, save time, and communicate consistently, making your email exchanges both effective and enjoyable.
Now go ahead and explore these fantastic tools, and get ready to experience a whole new level of email efficiency and productivity!
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