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FAQ

Do I need an API key?

Yes. Vastian uses OpenAI and/or Anthropic APIs. You bring your own keys and pay providers directly.

Where is my data stored?

Locally on your machine. Back up to Google Drive or Dropbox optionally. Nothing is sent to Vastian servers.

Can I use it on mobile?

Premium users can run a cloud worker with a mobile-friendly web interface and SMS notifications.

What models are supported?

OpenAI (gpt-4o, gpt-4o-mini) and Anthropic (claude-sonnet-4, claude-opus-4-5).

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