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AI · head to head

Vellum vs LangGraph

Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Rated
-
Full reviewWebsite
LangGraph logo

LangGraph

AI

Agent runtime and orchestration framework

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Vellum pricing varies significantly by computational tier, making budget planning difficult; LangGraph steeper learning curve compared to high-level abstractions
  • They diverge on capability: Vellum covers Persistent AI identity, LangGraph covers Human-in-the-loop controls.

Where they differ

Only the attributes on which Vellum and LangGraph actually diverge.

Attributes where Vellum and LangGraph differ
AttributeVellumLangGraph
Pricing modelFreemium with paid plans and pay-as-you-go creditsOpen source and free, with optional managed platform
PlatformsWeb, macOS, iOS, Slack, Telegram, TerminalPython, JavaScript, Web

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 Vellum

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

Only in LangGraph

  • Human-in-the-loop controls
  • Customizable workflows
  • Memory management
  • Token-by-token streaming
  • Low-level control
  • Multi-agent support

What people use each for

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

Vellum

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

LangGraph

  • Building production AI agents with auditable workflowsnot Vellum
  • Designing multi-agent systems for complex tasksnot Vellum
  • Implementing human oversight in autonomous systemsnot Vellum
  • Creating reliable agentic applications at scalenot Vellum

Where each one falls short

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

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

LangGraph

  • Steeper learning curve compared to high-level abstractions
  • Requires understanding of graph-based architecture
  • Debugging complex workflows can be challenging
  • Not optimized for simple, one-off use cases

Pricing, plan by plan

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

LangGraph

Free
  • Open SourceFree
    • MIT-licensed framework
    • Self-hosted deployment
    • Full API access
  • LangGraph Platform$35/month
    • Managed hosting
    • Enterprise deployment
    • Integrated tooling

Which should you pick?

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

Choose LangGraph if

  • You need human-in-the-loop controls.
  • You want to start without paying.
  • You work on Python, JavaScript, Web.
  • You also want customizable workflows.
LangGraph review

Questions people ask

Is Vellum or LangGraph better?
Neither clearly leads. Vellum starts at Free and LangGraph at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Vellum or LangGraph?
Vellum starts at Free and LangGraph at Free.
Does Vellum or LangGraph run on more platforms?
Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal. LangGraph runs on Python, JavaScript, Web.
Can I use Vellum for free?
Both have a free tier, so you can try either at no cost before committing.
What is Vellum best used for?
Vellum is most often used for personal productivity automation across email and calendar, crm updates and pipeline management, expense report generation and management, document drafting and content creation. Of those, personal productivity automation across email and calendar and crm updates and pipeline management are not what LangGraph is typically brought in for.
What can Vellum do that LangGraph cannot?
Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management. LangGraph covers Human-in-the-loop controls, Customizable workflows, Memory management, Token-by-token streaming.

Answered from the vendors’ own pages

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
LangGraph: Is LangGraph free to use?

Yes. The core LangGraph framework is MIT-licensed and completely free. You only pay if you use the optional managed LangGraph Platform for hosting.

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
LangGraph: What programming languages does LangGraph support?

LangGraph provides first-class support for Python and JavaScript, enabling cross-platform agent development.

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
LangGraph: Can I deploy LangGraph in production?

Yes. LangGraph can be self-hosted on your own infrastructure or deployed through LangGraph Platform with enterprise support and SLA guarantees.

Source
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