Kosmos brings order to the chaos of email.

Bring balance to your inbox, better understand and respond to emails, and unlock the full potential of your email productivity.

John Smith (john@acme.com)

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Hello John,

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Dear Sarah,


I hope this email finds you well. I wanted to tell you about an amazing tool called Smart Composer that I've been using lately to help with my email productivity.


Smart Composer is a writing assistant that adds functionality to Gmail, and it has been a game-changer for me. It can automatically write email replies, summarize email threads, and even continue writing where I left off. It's really helped me to stay organized and save time when dealing with a high volume of email.

The email tool that's out of this world.

Kosmos is designed and engineered with a meticulous attention to detail, combining a beautifully crafted user interface with exceptional performance.

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Built for your keyboard

Boost email productivity with keyboard shortcuts. Streamline your workflows and get things done faster.

Global support

Respond to emails in any language with one click.

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Responsive replies

Write numerous styles, with multiple email prompts.

Generate emails in real time

Watch your response take shape as you enjoy lightning-fast responsiveness.

Will Hobick (will.hobick@gmail.com)

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Built on powerful natural language models.

Intuitive Design

Experience a beautifully crafted user interface that is easy to use.

Real-Time Typing

See your emails take shape as they are typed for you in real-time.

Response Awareness

Watch as Kosmos learns over time to imitate your language style.

Analytics Tracking

Track time saved and characters typed using Kosmos in real time.

Keyboard Efficiency

Boost productivity with our extensive selection of keyboard shortcuts.

Language Support

Write however you want with full support for most languages.

Text Continuation

Let Kosmos take over when you hit writer's block or need help.

Gmail Integrated

Seamlessly added into Gmail, use Kosmos with a few clicks.

Manage your email
at the speed of light.

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