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Cloud · head to head

HAProxy vs Vellum

HAProxy logo

HAProxy

Cloud

High-performance TCP and HTTP load balancer

From
Free
Free plan
Yes
Full reviewWebsite
Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: HAProxy configuration syntax is dense and unforgiving, with a steep initial learning curve; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • They diverge on capability: HAProxy covers High throughput, Vellum covers Persistent AI identity.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which HAProxy and Vellum actually diverge.

Attributes where HAProxy and Vellum differ
AttributeHAProxyVellum
Pricing modelOpen source, no licence feeFreemium with paid plans and pay-as-you-go credits
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, macOS, iOS, Slack, Telegram, Terminal
CategoryCloudAI

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 HAProxy

  • High throughput
  • Layer 4 and 7
  • Health checking
  • Rate limiting and ACLs

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.

HAProxy

  • Load balancing at traffic levels where proxy efficiency shows up in the hardware billnot Vellum
  • Precise traffic control — rate limits, sticky sessions, complex routing rulesnot Vellum
  • TCP load balancing for databases and non-HTTP servicesnot Vellum

Vellum

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

Where each one falls short

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

HAProxy

  • Configuration syntax is dense and unforgiving, with a steep initial learning curve
  • No automatic certificate management, unlike newer servers that treat it as default behaviour
  • The built-in stats page is basic, so real observability needs exporters and dashboards
  • A dedicated load balancer is more machinery than small deployments need

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

HAProxy

Free
  • HAProxyFree
    • Full functionality
    • No usage limits
    • Community 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 HAProxy if

  • You need high throughput.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want layer 4 and 7.
HAProxy 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 HAProxy or Vellum better?
Neither clearly leads. HAProxy 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, HAProxy or Vellum?
HAProxy starts at Free and Vellum at Free.
Does HAProxy or Vellum run on more platforms?
HAProxy runs on Linux, Docker, Kubernetes, Self-hosted. Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use HAProxy for free?
Both have a free tier, so you can try either at no cost before committing.
What is HAProxy best used for?
HAProxy is most often used for load balancing at traffic levels where proxy efficiency shows up in the hardware bill, precise traffic control — rate limits, sticky sessions, complex routing rules, tcp load balancing for databases and non-http services. Of those, load balancing at traffic levels where proxy efficiency shows up in the hardware bill and precise traffic control — rate limits, sticky sessions, complex routing rules are not what Vellum is typically brought in for.
What can HAProxy do that Vellum cannot?
HAProxy covers High throughput, Layer 4 and 7, Health checking, Rate limiting and ACLs. Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

HAProxy: Is HAProxy free?

Yes, the community version is open source. HAProxy Technologies sells HAProxy Enterprise separately.

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
HAProxy: HAProxy or Nginx?

HAProxy is a specialist load balancer with deeper balancing and health-check features. Nginx also serves static content and is more approachable, which is why it is more common as a general web server.

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
HAProxy: Does HAProxy handle TLS certificates automatically?

No. Certificate issuance and renewal are external, unlike Caddy where it is automatic.

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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