Free
$0 forever
Everything Seylo does, at a small scale.
- 500,000 characters of project memory
- 250 MB of file storage
- 3 active projects
- All four views, lineage and full version history
- Browser extension, and search across every project
Pricing
Free for three projects. Pro for the rest.
Everything Seylo does is on the free plan, at a small scale. Pro removes the limits and connects your AI tools to the projects.
ProMost of Seylo is here
$8.99 per month, billed annually
For when three projects stop being enough. Month to month it is $12.99 per month, so paying for the year saves 31%.
- Search by meaning, not just by words
- Unlimited project memory
- Unlimited AI context handovers
- 20 GB of file storage
- Unlimited projects
- Share a project with up to 2 people
- Files up to 500 MB
Founding
$59$107.88 45% offper year, locked for as long as you stay
Everything in Pro, at the price the first 100 accounts pay.
- Everything in Pro
- 20 GB of file storage
- Price never rises while your subscription runs
Every paid plan comes with 14 days to change your mind: full refund, no questions.
What the free plan is for
It is not a trial. Three projects, three spaces inside each of them, and 250 MB of file storage: enough to keep a real piece of work in Seylo for as long as you like, with the map, the lineage, version history, the browser extension and search all there.
What it does not include is connecting an assistant. Reading a project from Claude or ChatGPT, and letting them write back into it, is part of Pro.
What Pro adds
- Your AI tools, connected. Claude, ChatGPT, Cursor and Codex read the project over MCP and save what they write back into it. See connected tools.
- No project or space limits, and unlimited project memory.
- Search by meaning, not only by the words you remember.
- More room: 20 GB of file storage, and single files up to 500 MB.
- Sharing: a project can be shared with up to 2 people.
The founding price
Founding is $59 per year, locked for as long as you stay, for the first 100 accounts: everything in Pro, at a price that never rises while the subscription runs. The card beside the other two counts the places as they go, and stays where it is once the last one has.
Questions people ask before paying
Can I change my mind? Every paid plan comes with 14 days to change your mind: full refund, no questions. Cancelling keeps the plan running until the end of the period you paid for.
What happens to my projects if I stop paying? Nothing is deleted. Projects past the free plan’s limit are locked rather than removed: still readable, still exportable, not editable until you are back under the limit or back on Pro.
Can I take my work out? Yes. Everything you have saved, including files, exports as a zip from Settings.
Is there a team plan? Not yet. Two people can share a project on Pro today; a proper team plan is in development.