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AI · head to head

DeepSeek vs Vellum

DeepSeek logo

DeepSeek

AI

Chinese AI lab offering reasoning models via web and API

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: DeepSeek specific pricing details not published on homepage; API pricing page referenced but content not available; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which DeepSeek and Vellum actually diverge.

Attributes where DeepSeek and Vellum differ
AttributeDeepSeekVellum
Pricing modelfreemiumFreemium with paid plans and pay-as-you-go credits
PlatformsWeb, iOS, Android, APIWeb, macOS, iOS, Slack, Telegram, Terminal

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 DeepSeek

Nothing recorded that Vellum does not also cover.

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.

DeepSeek

  • Large language model and AI chat interfacenot Vellum
  • API-based AI service for developersnot Vellum
  • Natural language processing applicationsnot Vellum

Vellum

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

Where each one falls short

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

DeepSeek

  • Specific pricing details not published on homepage; API pricing page referenced but content not available
  • No published tier information, costs, or feature limitations on main website
  • Free web interface available but API pricing models not disclosed

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

DeepSeek

Free
  • Web ChatFree
    • Conversation access
    • Latest model access
  • API$undefined/variable
    • Pay-per-token pricing
    • Multiple models available

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 DeepSeek if

  • You want to start without paying.
  • You work on Web, iOS, Android, API.
DeepSeek 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 DeepSeek or Vellum better?
Neither clearly leads. DeepSeek 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, DeepSeek or Vellum?
DeepSeek starts at Free and Vellum at Free.
Does DeepSeek or Vellum run on more platforms?
DeepSeek runs on Web, iOS, Android, API. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use DeepSeek for free?
Both have a free tier, so you can try either at no cost before committing.
What is DeepSeek best used for?
DeepSeek is most often used for large language model and ai chat interface, api-based ai service for developers, natural language processing applications. Of those, large language model and ai chat interface and api-based ai service for developers are not what Vellum is typically brought in for.
What can DeepSeek do that Vellum cannot?
Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

DeepSeek: Does DeepSeek offer a free version?

Yes, DeepSeek offers free conversations through its web interface. Specific free tier limitations and API pricing are available at https://api-docs.deepseek.com/zh-cn/quick_start/pricing.

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
DeepSeek: What is DeepSeek's pricing model?

DeepSeek references both free web-based conversations and paid API access. Detailed API pricing information is published on their API documentation site but not on the main homepage.

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
DeepSeek: Can I use DeepSeek for commercial purposes?

DeepSeek's terms for commercial use are not clearly stated on the homepage. Contact DeepSeek or review their API documentation for commercial licensing and pricing information.

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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