Vellum

Vellum - Analytics AI Tool

Prompt engineering with version control and evals.

Vellum provides the workflow layer around building AI features — prompt versioning\, side-by-side model comparison\

Quick Information

Platform

Web

Pricing

Free + Paid (from $30/mo)

API

Available

Category

Analytics

Pros and Cons

Pros

  • Prompt versioning and comparison
  • Evaluation suites built in
  • Free to start
  • Open-source self-hosting with no platform fee
  • Transparent $1 = 1 credit pricing

Cons

  • Compute-shaped pricing is unusual
  • Credits on top of plan fee
  • Storage limited on lower tiers
  • Learning curve around eval design
$0.00

Free + Paid (from $30/mo)

Version and Compare Prompts

Evaluate Before Shipping

Deploy AI Assistants

Self-Host Without Fees

FAQs

Is Vellum free to start?

Yes. "Start free. Your first tasks are on us" — you can set up an assistant without upfront cost.

How much does Vellum cost?

Mighty is $30/month\, Super $100/month and Ultra $200/month\, differing by compute size\, storage and included usage credits.

How do credits work?

"$1 = 1 credit\, and you only pay for what you use." Plans include monthly bundles with pay-as-you-go beyond.

Can I self-host?

Yes — an open-source self-hosting option is available with no platform fees.

Write Your Own Review

Write Your Own Review