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AI · head to head

QuillBot vs Vellum

QuillBot logo

QuillBot

AI

AI paraphrasing and writing tool

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: QuillBot free tier limited to 125-word paraphrases with only 2 modes; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • They diverge on capability: QuillBot covers Paraphrasing, Vellum covers Persistent AI identity.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which QuillBot and Vellum actually diverge.

Attributes where QuillBot and Vellum differ
AttributeQuillBotVellum
Pricing modelfreemiumFreemium with paid plans and pay-as-you-go credits
PlatformsWebWeb, macOS, iOS, Slack, Telegram, Terminal
Founded2017Unknown

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

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 QuillBot

  • Paraphrasing
  • Grammar checking
  • Summarization
  • Citation generator
  • Browser extension
  • Microsoft Word
  • Google Docs
  • Web support

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.

QuillBot

  • ai tools managementnot Vellum
  • Workflow automationnot Vellum
  • Reportingnot Vellum

Vellum

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

Where each one falls short

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

QuillBot

  • Free tier limited to 125-word paraphrases with only 2 modes
  • Grammar checking is less robust than Grammaly
  • Writing analytics less advanced than top-tier competitors

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

QuillBot

Free
  • FreeFree
    • 125 words paraphrase
    • 3 modes
  • Premium$9.95/month
    • Unlimited words
    • All modes
    • Plagiarism checker

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 QuillBot if

  • You need paraphrasing.
  • You want to start without paying.
  • You also want grammar checking.
QuillBot 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 QuillBot or Vellum better?
Neither clearly leads. QuillBot 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, QuillBot or Vellum?
QuillBot starts at Free and Vellum at Free.
Does QuillBot or Vellum run on more platforms?
QuillBot runs on Web. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use QuillBot for free?
Both have a free tier, so you can try either at no cost before committing.
What is QuillBot best used for?
QuillBot is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Vellum is typically brought in for.
What can QuillBot do that Vellum cannot?
QuillBot covers Paraphrasing, Grammar checking, Summarization, Citation generator. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

QuillBot: What is QuillBot pricing?

QuillBot uses a freemium model. Premium costs $19.95/month or $8.33/month ($100/year) when billed annually. The free tier provides basic paraphrasing with 125-word limit and 2 modes.

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
QuillBot: What are QuillBot's paraphrasing modes?

QuillBot offers 10 specialized paraphrasing modes including Standard, Fluency, Creative, and the newly added Boomer Mode, providing unmatched flexibility at this price point.

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
QuillBot: What features does the free plan include?

QuillBot's free plan includes paraphrasing (125-word limit, 2 modes), grammar checking with limited daily checks, summarizing (1,200-word limit), and basic translation.

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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