Last updated 08-13-2026
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ChatGPT Services
ChatGPT Services hosts Gmail add-ons from Klart AI that write, translate, summarize, and analyze email inside your inbox. AI Mail Assistant adds reply generation, draft polishing, 13-language translation, ChatGPT Q&A, and tone or ethics analysis to Gmail through the Google Workspace Marketplace.
Unlike standalone ChatGPT tabs, these tools live in Gmail's sidebar so you generate replies, insert drafts, and translate threads without switching apps. A separate AI Label Assistant product auto-labels and archives mail on an hourly schedule using your existing Gmail labels, with custom instructions when label titles alone are not specific enough.
The suite also includes Klart Prompts for GPT, Midjourney, and reverse prompt engineering. Plans start with 10 free AI Mail Assistant requests per month, paid tiers from €4.99 monthly, and Stripe or PayPal billing with cancel-anytime subscriptions.
AI Mail Assistant generates Gmail replies, summaries, and draft improvements powered by GPT-4 and GPT-4o
Built-in translation covers 13 languages for both incoming mail and outgoing drafts
Email analysis flags sarcasm, harassment, discrimination, mobbing, and ethical issues in threads
AI Label Assistant auto-labels mail hourly with up to 20 custom labels and optional auto-archiving
Free AI Mail Assistant tier includes 10 requests per month across all compose features
Klart Prompts Pro adds unlimited GPT, Midjourney, and reverse prompt engineering generators
Works inside Gmail via Google Workspace Marketplace without copying text to external chat tabs.
Free tier includes 10 monthly AI Mail Assistant requests to test reply and translation features.
Translation supports 13 languages on both received mail and drafts from one sidebar.
AI Label Assistant can auto-archive labeled mail to keep inboxes clean on an hourly schedule.
Gmail and Google Workspace only; no Outlook or other email clients are listed.
AI Label Assistant free trial labels just 30 emails before a paid plan is required.
Multiple separate subscriptions for Mail Assistant, Label Assistant, and Klart Prompts add up quickly.
What does ChatGPT Services AI Mail Assistant do in Gmail?
ChatGPT Services AI Mail Assistant is a Google Workspace Marketplace add-on that generates email replies, summarizes threads, translates messages, improves drafts, analyzes tone, and answers ChatGPT questions from Gmail's sidebar while you read or compose mail.
How much does ChatGPT Services cost?
ChatGPT Services offers a free AI Mail Assistant plan with 10 requests per month. Premium costs €4.99 per month or €45 per year, AI Label Assistant Basic is €4.99 monthly, Pro is €9.99 monthly, and Klart Prompts Pro is €4.99 monthly.
Which languages does ChatGPT Services translate?
ChatGPT Services AI Mail Assistant translates both incoming emails and outgoing drafts across 13 languages selectable from the Gmail add-on, according to its how-it-works guide for the Translate feature.
How does ChatGPT Services AI Label Assistant work?
ChatGPT Services AI Label Assistant reads your existing Gmail labels, then auto-labels new mail every hour once you activate the feature. Pro plans label unlimited emails, Basic labels up to 1,000 per month, and you can auto-archive selected labels from the Configure area.
Is there a free trial for ChatGPT Services?
Yes. ChatGPT Services includes 10 free AI Mail Assistant requests each month and labels 30 emails free in AI Label Assistant before a subscription is required, per the pricing and how-it-works pages.
How do I install ChatGPT Services in Gmail?
ChatGPT Services add-ons install from the Google Workspace Marketplace with a Google sign-up on chatgptservices.app. After authorization, open Gmail, expand the right-side cards menu, select the AI Mail Assistant icon, and open an email to use the tools.