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Developer Tools · head to head

Refact vs Vellum

Refact logo

Refact

Developer Tools

Autonomous AI coding agent for development tasks

From
Free
Rated
-
Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Rated
-

The short version

  • Each has a real cost: Refact requires configuration for optimal performance; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • They diverge on capability: Refact covers Autonomous agent workflows, Vellum covers Persistent AI identity.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Refact and Vellum actually diverge.

Attributes where Refact and Vellum differ
AttributeRefactVellum
Pricing modelFreemium with paid tiersFreemium with paid plans and pay-as-you-go credits
PlatformsVS Code, WebWeb, macOS, iOS, Slack, Telegram, Terminal
CategoryDeveloper ToolsAI
Founded2023Unknown

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 Refact

  • Autonomous agent workflows
  • IDE chat
  • Real-time code completions
  • GitHub integration
  • Database integration
  • On-premise deployment
  • Multi-LLM support
  • 25+ language 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.

Refact

  • Autonomous code generation for development tasksnot Vellum
  • End-to-end bug fixes and refactoringnot Vellum
  • Multi-language software development accelerationnot Vellum
  • Enterprise development with data privacy requirementsnot Vellum

Vellum

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

Where each one falls short

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

Refact

  • Requires configuration for optimal performance
  • On-premise deployment adds operational complexity
  • Free tier limited by daily agent request quota
  • Coin system adds complexity to cost calculation

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

Refact

Free
  • FreeFree
    • Limited daily agent usage
    • Unlimited completions
    • 2,000 coins for agent and chat
  • Pro$10/month
    • 40 daily agent requests
    • 64k context window
    • 10,000 coins monthly
  • Enterprise$undefined/custom
    • On-premise deployment
    • Custom coin allocation
    • Fine-tuning support

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 Refact if

  • You need autonomous agent workflows.
  • You want to start without paying.
  • You work on VS Code, Web.
  • You also want ide chat.

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.

Questions people ask

Is Refact or Vellum better?
Neither clearly leads. Refact 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, Refact or Vellum?
Refact starts at Free and Vellum at Free.
Does Refact or Vellum run on more platforms?
Refact runs on VS Code, Web. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use Refact for free?
Both have a free tier, so you can try either at no cost before committing.
What is Refact best used for?
Refact is most often used for autonomous code generation for development tasks, end-to-end bug fixes and refactoring, multi-language software development acceleration, enterprise development with data privacy requirements. Of those, autonomous code generation for development tasks and end-to-end bug fixes and refactoring are not what Vellum is typically brought in for.
What can Refact do that Vellum cannot?
Refact covers Autonomous agent workflows, IDE chat, Real-time code completions, GitHub integration. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

Refact: How many programming languages does Refact support?

Refact supports 25+ programming languages including Python, JavaScript, Go, Rust, Java, C++, and many others.

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
Refact: Can I deploy Refact on-premises?

Yes. Refact offers on-premise deployment options for organizations requiring complete data control and privacy.

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
Refact: What LLMs does Refact support?

Refact works with multiple LLMs including Claude, GPT-4, and open-source models, giving you flexibility in model selection.

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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