AI Mail Assistant
AI Mail Assistant is a Gmail add-on that uses OpenAI's GPT models to draft replies, summarize and translate emails and refine drafts, with a companion add-on for automatic labeling.
What is AI Mail Assistant?
AI Mail Assistant is a Gmail add-on, sold through chatgptservices.app by Klart AI, that brings OpenAI's GPT models into your inbox. Once installed from the Google Workspace Marketplace, it sits beside an open email and can draft a reply, summarize a long thread, translate a message or polish your own draft.
A companion add-on, AI Label Assistant, focuses on inbox organization: it reads incoming mail and applies your Gmail labels, tags and archiving rules automatically. Both tools are aimed at professionals who spend a large part of the day in Gmail and want help with routine writing and sorting rather than a separate AI app.
Key Features of AI Mail Assistant
Reply generation
The add-on drafts a response to the email you have open, which you can then edit before sending. The vendor says it runs on OpenAI's GPT-4o.
Summaries of long emails
A summarize action pulls out the main points of a lengthy message so you can decide quickly whether it needs action.
Translation in 13 languages
Incoming and outgoing messages can be translated, which helps when working with international clients or colleagues.
Grammar and wording improvements
Your own drafts can be checked for errors and rephrased to sound clearer or more professional.
Email analysis
An analysis feature looks at tone and flags issues such as sarcasm, harassment, discrimination or sensitive topics in a message.
Automatic labeling with AI Label Assistant
The separate labeling add-on sorts mail into your existing labels, can archive specific topics and accepts custom instructions, as an alternative to building complex Gmail filters by hand.
AI Mail Assistant Pricing
Pricing is in euros and split by add-on. AI Mail Assistant has a small free allowance and a low-cost Premium plan, while AI Label Assistant and the Klart Prompts tool are billed separately. The site states that plans include a free trial period and that payments run through Stripe or PayPal, with cancellation possible at any time.
Prices checked on October 27, 2026; check the official pricing page for current plans.
Who Should Use AI Mail Assistant?
- Professionals who answer many routine emails in Gmail and want a first draft to edit.
- People who correspond in several languages and need quick translations inside the inbox.
- Non-native English writers who want grammar and wording checks before sending.
- Users with busy inboxes who want AI-based labeling instead of manual filters.
Is AI Mail Assistant Worth It?
For Gmail users, AI Mail Assistant is an inexpensive way to add GPT-powered drafting, summaries and translation without leaving the inbox. The free tier of 10 requests a month is enough to judge whether the replies fit your style, and the Premium price is low compared with many AI writing subscriptions.
There are limits. It works only with Gmail, so Outlook users are not covered, and labeling is a separate subscription. Emails are processed with OpenAI models, so teams handling sensitive data should read the privacy policy first. The website also gives few details about the company behind it beyond the Klart AI name. If you mainly want quick reply drafts and translations in Gmail at a low monthly cost, it is worth trying the free plan; teams needing admin controls or broader email client support should look at larger suites.