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Webinars · head to head

Demio vs Vellum

Demio logo

Demio

Webinars

Webinars that work for you

From
Free
Rated
-
Full reviewWebsite
Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Demio the Starter plan at $45 a month billed annually caps attendees at 50 and sessions at 3 hours; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • They diverge on capability: Demio covers Live webinars, Vellum covers Persistent AI identity.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Demio and Vellum actually diverge.

Attributes where Demio and Vellum differ
AttributeDemioVellum
Pricing modelsubscriptionFreemium with paid plans and pay-as-you-go credits
PlatformsWebWeb, macOS, iOS, Slack, Telegram, Terminal
CategoryWebinarsAI
Founded2015Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Demio

  • Live webinars
  • Automated webinars
  • On-demand content
  • Registration pages
  • Analytics
  • HubSpot
  • ActiveCampaign
  • Drip

Only in Vellum

  • Persistent AI identity
  • Long-term memory
  • Email automation
  • Calendar management
  • Autonomous task execution
  • Multi-device synchronization
  • Custom plugins
  • Open-source deployment

What people use each for

The jobs each tool is most often brought in to do.

Demio

  • Running live and automated marketing webinarsnot Vellum
  • Recording and replaying webinars on demand with registration trackingnot Vellum

Vellum

  • Personal productivity automation across email and calendarnot Demio
  • CRM updates and pipeline managementnot Demio
  • Expense report generation and managementnot Demio
  • Document drafting and content creationnot Demio
  • Meeting scheduling and calendar coordinationnot Demio

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Demio

  • The Starter plan at $45 a month billed annually caps attendees at 50 and sessions at 3 hours
  • Automated and pre recorded on demand webinars are excluded from Starter, so the entry plan is live only
  • 1080p streaming, restreaming, live captions, auto transcriptions and custom domains are all Premium only
  • Attendee capacity is a priced tier within a plan rather than a soft limit, at 150, 500, 1,000 or 3,000
  • Only Premium, at $196 a month billed annually, removes the host limit

Vellum

  • Pricing varies significantly by computational tier, making budget planning difficult
  • Requires explicit permission for sensitive actions, limiting autonomy
  • Self-hosting option may intimidate non-technical users
  • Learning curve to develop customizations with plugins

Pricing, plan by plan

Demio

Free
  • Starter$45/month
    • Single host only
    • 50 attendee room capacity
    • 3-hour session limit
  • Growth$null/month per host
    • Variable pricing per host
    • Attendee room sizes: 150, 500, 1,000, or 3,000
    • 8-hour session limit
  • Premium$196/month per host
    • Attendee room sizes: 150, 500, 1,000, or 3,000
    • 10-hour session limit
    • Up to 10 people on stage

Vellum

Free
  • FreeFree
    • Starter credits included
    • Basic features
  • Mighty$30/month
    • 1 vCPU, 2 GiB RAM
    • 10 GB storage
    • Included usage allowance
  • Super$100/month
    • 2.5 vCPU, 5 GiB RAM
    • 30 GB storage
    • Assistant email and subdomain
  • Ultra$200/month
    • 4 vCPU, 8 GiB RAM
    • 60 GB storage
    • Assistant email and subdomain

Which should you pick?

Choose Demio if

  • You need live webinars.
  • You want to start without paying.
  • You also want automated webinars.
Demio review

Choose Vellum if

  • You need persistent ai identity.
  • You want to start without paying.
  • You work on Web, macOS, iOS, Slack, Telegram, Terminal.
  • You also want long-term memory.
Vellum review

Questions people ask

Is Demio or Vellum better?
Neither clearly leads. Demio starts at Free and Vellum at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Demio or Vellum?
Demio starts at Free and Vellum at Free.
Does Demio or Vellum run on more platforms?
Demio runs on Web. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use Demio for free?
Both have a free tier, so you can try either at no cost before committing.
What is Demio best used for?
Demio is most often used for running live and automated marketing webinars, recording and replaying webinars on demand with registration tracking. Of those, running live and automated marketing webinars and recording and replaying webinars on demand with registration tracking are not what Vellum is typically brought in for.
What can Demio do that Vellum cannot?
Demio covers Live webinars, Automated webinars, On-demand content, Registration pages. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

Demio: How much does Demio Starter cost?

Demio Starter costs $45 per month (annual billing) or $63 per month (monthly billing). It supports a single host with a 50-person attendee capacity, 3-hour session limit, 4 people on stage, and 15 event admins.

Source
Vellum: How does Vellum protect my data privacy?

Vellum uses permission-based controls requiring explicit approval for sensitive actions. Data is encrypted and the option for self-hosting provides complete data control. Open-source deployment option allows hosting on your own infrastructure.

Source
Demio: What does Demio Premium include?

Demio Premium costs $196 per host per month and includes unlimited hosts per account, 10-hour session limits, 10 people on stage, 50 event admins, 1080p streaming, restreaming, live captions, auto-transcriptions, Demio AI, dedicated CSM, and priority support.

Source
Vellum: Can I use Vellum for business team collaboration?

Vellum is primarily designed as a personal assistant with persistent identity. For team collaboration, platforms like Lindy offer better multi-user features with shared credit pools and Slack workspace integration.

Source
Demio: Does Demio offer a free trial?

Yes, Demio provides a 14-day free trial with Growth plan features (limited to 20 attendees and 1-hour sessions). The trial provides access to all standard features including chat, polls, and engagement analytics without requiring a credit card.

Source
Vellum: What does the free tier include?

Vellum offers free starter credits to begin using the platform. Beyond that, it operates on a pay-as-you-go credit model with paid tiers starting at $30/month for increased computational resources and bundled credits.

Source
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