What is Vellum?
Open-source assistant for inbox, calendar and tasks with memory.
Who is Vellum best for?
Vellum is best for people who want a private AI assistant that remembers them and handles their email and calendar.
Inbox and calendar busywork
It sends emails, manages your calendar and runs recurring tasks in the background, with built-in skills for Google Workspace, Slack and Notion.
Privacy-minded users
By default it runs on your own machine, keeps memory and credentials local, never trains on your data, and its code is open source.
Picking your own model
You can switch between OpenAI, Anthropic and Gemini models, or run open-weight models through Ollama.
One assistant on every device
The same memory and tasks follow you across Mac, iOS, Android, the web, Slack, Telegram, email and the terminal.
How much does Vellum cost?
Vellum's Base plan is free forever with pay-as-you-go credits at $1 each, and its cloud plans cost $30, $100 or $200 a month (Mighty, Super, Ultra) with more computing power, storage and monthly usage included.
- Small machine: 1 vCPU, 2 GiB RAM
- 6 GiB of storage
- Pay-as-you-go credits, $1 per credit
- Small machine: 1 vCPU, 2 GiB RAM
- 10 GB of storage
- Mighty Usage bundle each month
- Medium machine: 2.5 vCPU, 5 GiB RAM
- 30 GB of storage and Super Usage each month
- Assistant email, subdomain, static IP and priority support
- Large machine: 4 vCPU, 8 GiB RAM
- 60 GB of storage and Ultra Usage each month
- Assistant email, subdomain, static IP and priority support
Credits pay for AI replies, web searches and images at $1 per credit, with model costs passed through without markup. Paid plans spend their monthly usage first; it does not roll over, and bought credits last 12 months. A Custom plan lets you pick each part, from $50 a month, with usage bundles at $25, $45 or $115 a month. The assistant is open source, and self-hosting it on your own hardware has no platform or machine fee. Full pricing on vellum.ai. We checked these prices on .
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Questions about Vellum
What is Vellum?
Open-source assistant for inbox, calendar and tasks with memory.
Who is Vellum for?
Vellum is best for people who want a private AI assistant that remembers them and handles their email and calendar.
Is Vellum free?
Yes, Vellum's Base plan is free forever and your first tasks are on Vellum, but after that AI replies, web searches and images are paid with credits at $1 each. The open-source assistant can also be self-hosted on your own hardware with no platform fee.
Does Vellum mark up AI model costs?
No. Vellum says it passes model provider costs through at cost with no margin on tokens, so $1 of credits buys $1 of model use. Credits are bought in $10 steps up to $100 per top-up, and Auto-Reload can top up for you.
Where can I try Vellum?
On its official website, vellum.ai.
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