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x.ai

The pioneering email scheduling AI — its domain now belongs to Elon Musk's xAI

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Looking for a tool like x.ai (The pioneering email scheduling AI — its domain now belongs to Elon Musk's xAI)? Below are 6 AI tools people use as an alternative to x.ai, ranked by leaderboard position. Each one is approved by our editors and worth comparing before you decide.

Fantastical
Fantastical

Natural-language calendar app for Apple devices

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Clockwise
Clockwise

Former AI calendar optimizer; service shut down in March 2026

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Cal.com
Cal.com

Open-source Calendly alternative you can self-host

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Motion
Motion

AI calendar that rebuilds your day as priorities shift

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Calendly
Calendly

The default scheduling link, now with AI-suggested times

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Acuity Scheduling
Acuity Scheduling

Online booking that syncs straight to your calendar

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