ChatGPT for Gmail

MailGPT

ChatGPT and Claude AI in your Gmail inbox.

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Verdict

A quick read before you dig into the full page.

Best if
ChatGPT and Claude AI in your Gmail inbox
Skip if
Only available on Chrome
Pick this when
Chrome extension

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Overview

MailGPT - ChatGPT and Claude for Gmail is a Chrome extension that brings AI-based writing abilities into your Gmail inbox with the combined power of ChatGPT and Claude AI models.

Developed by Pier20.ai, this extension helps users to create efficient, professional-grade correspondence, transforming rough outlines into polished and clear emails.

The tool also has features for turning meeting notes into action-oriented emails, adding personality to messages, simplifying complex writing for better readability, and enhancing response rates.

It also enables users to craft custom writing styles informed by personalized AI instructions. Developed with a simple setup process, users need to install the extension and create a Pier20 account.

It aligns with the technology of ChatGPT by OpenAI and Claude by Anthropic, both advanced AI language models refined to understand context, process information, and generate human-like text.

It doesn't necessitate separate accounts with ChatGPT, OpenAI, Claude, or Anthropic. MailGPT does not collect or use user data and complies with EU laws.

Notably, this product is not an official OpenAI or Anthropic tool, but developed by Pier20.ai team for enhancing email writing skills of users.

MailGPT website

Access & connections

Where you can use MailGPT, and what it plugs into.

Platforms

Integrations

Capabilities

What this tool accepts, produces, and is strongest at.

Input

  • Text

Output

  • Text

Pros & cons

Pros

  • Chrome extension
  • Professional-grade correspondence
  • Transforms rough outlines to emails
  • Turns meeting notes to emails
  • Adds personality to messages
  • Simplifies complex writing
  • Enhances response rates
  • Custom writing styles
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  • Simple setup process
  • No separate ChatGPT account needed
  • No separate Claude account needed
  • No separate Anthropic account needed
  • Doesn't collect user data
  • Compliance with EU laws
  • Good publisher record
  • Ability to add wit
  • 1-click meeting notes conversion
  • Free to use
  • Includes Q&A section
  • Extension size is 480KiB
  • High rating on Chrome store
  • Supports English language
  • Made by Pier20.ai
  • Doesn't sell data to third parties
  • Supports text simplification
  • Enhances email communication
  • Increases productivity
  • Doesn't use data for creditworthiness
  • Doesn't use data for lending purposes
  • Promotes user privacy
  • Developer committed to EU compliance

Cons

  • Only available on Chrome
  • Requires Pier20 account
  • Exclusive to Gmail
  • Doesn't integrate other email platforms
  • Dependent on developer updates
  • No multi-language support mentioned
  • No evident offline capabilities
  • Unavailable on mobile devices

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Releases 1

Initial release June 21, 2025 Current
Initial release of MailGPT.

FAQ 12

What is the function of MailGPT in Gmail?
MailGPT functions in Gmail by offering professional-grade AI-based writing assistance. It helps in crafting efficient and professional emails from rough outlines, transforming meeting notes into action-oriented emails and enhancing the readability of complex writing.
How does MailGPT - ChatGPT and Claude for Gmail enhance my emails?
MailGPT boosts your emails by simulating human-like text patterns to transform rough outlines into polished and clear professional-grade correspondence. Additionally, it adds personality to your messages, optimizes your writing for better readability, and employs AI-informed styles to enhance responses.
What specific features does the MailGPT Chrome extension offer?
The MailGPT Chrome extension offers features such as transforming rough drafts into professional emails, converting meeting notes into clear, action-oriented emails, adding personality to messages, simplifying complex writings, creating custom writing styles informed by personalized AI instructions, and improving response rates.
Can I create custom writing styles with MailGPT?
Yes, MailGPT allows the creation of custom writing styles informed by personalized AI instructions.
What AI models are used in MailGPT and what are their roles?
MailGPT uses the ChatGPT by OpenAI and Claude AI by Anthropic models. These advanced AI language models understand context, process information, and emulate human-like text production.
How does the MailGPT tool simplify complex writing?
MailGPT simplifies complex writing by unpacking the dense information into simpler terms to improve readability and enhance response rates.
How is MailGPT incorporated into my Gmail?
MailGPT is incorporated into Gmail via a Chrome extension. Through a simple setup process of installing the extension and creating a Pier20 account, MailGPT is directly integrated into the Gmail interface for seamless user experience.
Can MailGPT turn my meeting notes into emails?
Yes, MailGPT can turn meeting notes into clear, action-oriented emails.
Is the setup process for MailGPT difficult?
No, the setup process for MailGPT is noted as simple. Users are only required to install the Chrome extension and create an Pier20 account.
Do I need to create a separate account with OpenAI, Claude, Anthropic, or ChatGPT to use MailGPT?
No, it is not necessary to create separate accounts with OpenAI, Claude, Anthropic, or ChatGPT to use MailGPT.
Does MailGPT collect or use my personal data?
No, MailGPT does not collect or utilize any user data.
In what way does MailGPT adhere to EU privacy laws?
MailGPT adheres to EU privacy laws by not collecting or using user data and ensuring all user data is managed in compliance with core EU laws and regulations.
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