Vellum
Verified Oct 16, 2026 ActivePersonal AI assistant with persistent memory that acts across email, calendar, files and chat apps
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $30/mo
- Billing
- Monthly
Free tier covers initial tasks; Mighty $30/month (1 vCPU / 2 GiB machine, 10 GB storage, $25 usage credits), Super $100/month, Ultra $200/month, plus custom plans. Credits are pay-as-you-go beyond the bundles; self-hosting the open-source runtime avoids platform fees.
Use tool ↗About Vellum
Vellum now sells a personal assistant that keeps long-term memory, runs tasks in the background and takes actions - web browsing, file work, code execution, calendar and messaging - from the web, a Mac app, iOS, CLI, Slack and Telegram. The runtime is MIT-licensed for self-hosting, or you rent a hosted machine with bundled usage credits from $30/month after a free start. Note the identity shift: this domain previously marketed an enterprise LLM development platform, and docs.vellum.ai still documents that product, so verify which Vellum you are evaluating.
- API
- Yes
- Last verified
- Oct 16, 2026
Verified sources
- Personal assistant with persistent memory, background tasks, and web/macOS/iOS/CLI/Slack/Telegram clients, self-hostable under MITvellum.ai ↗
- Free tier, then Mighty $30, Super $100 and Ultra $200 per month with bundled creditsvellum.ai ↗
- Docs subdomain still documents an end-to-end AI development platform with SDKs and APIsdocs.vellum.ai ↗
Is Vellum legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Jan 23, 2023 (3 years ago)Registry record (RDAP), registrar NameCheap, Inc., looked up Sep 6, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Dec 21, 2026Seen in our own connection to the site on Oct 16, 2026
- Last checked
- Oct 16, 2026The site answered
Pros & cons of Vellum
An ambitious personal agent that pairs deep memory with real tool access, and the MIT-licensed runtime is a rare escape hatch in this category. The company is visibly mid-pivot - its docs subdomain still describes the earlier enterprise LLM platform - so expect product churn and check that plan credits cover your actual usage.
Pros
- Persistent memory plus real actions, not just chat
- Open-source MIT runtime allows self-hosting without platform fees
- Wide surface: web, macOS, iOS, CLI, Slack, Telegram
- Transparent hosted pricing with defined compute and credit bundles
Cons
- Brand confusion: documentation and older coverage describe a different enterprise product
- Usage credits on top of the subscription make heavy use costlier than the sticker price
- Company details for the current product are thin on the site
Best for
- Individuals who want one assistant with memory across email, calendar and chat
- Tinkerers willing to self-host an open-source assistant runtime
- Mac-centric users who want a native app plus mobile and Slack access
Not for
- Teams looking for the former Vellum-style prompt/workflow/eval platform for building LLM products
- Anyone needing a stable product with a years-long track record
Watch out: Older Vellum URLs circulating in directories (including /sp/showcase) now return 404; the domain's flagship is the personal assistant while docs.vellum.ai still documents the legacy LLM development platform.
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Vellum head-to-head
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