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Vellum

Build agents from natural-language descriptions

vellum.ai ↗
APIFree tierSOC 2
Jack Phillips
Audited by Jack Phillips · Updated June 2026
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Overall score

3.4/ 5
SME fit2/5
tiered pricing with step cliff + free tier
JTBD3/5
moderate JTBD clarity
Integration4/5
API + 8 integrations
Trust3/5
growing, founded 2022
Quality5/5
4.8 on G2 (30 reviews)
Compliance4/5
SOC 2 + GDPR

About

Vellum is an LLM development platform for building, testing, and deploying production AI features with prompt engineering, evaluation, and observability tools. Targets engineering teams shipping reliable AI applications.

Best for: Engineering teams building, evaluating, and deploying production-grade LLM apps.

Pricing

  • Free

    Monthly
    Free
    Annual /mo
    Free
    Billing
    flat
    Notes
    50 builder credits/mo; 1 seat; hosted agent apps; 20 docs knowledge base

  • Pro

    Monthly
    $500
    Annual /mo
    $500
    Billing
    flat
    Notes
    Production use; team collaboration; expanded credits · Pass-through model costs

  • Enterprise

    Monthly
    n/a
    Annual /mo
    n/a
    Billing
    flat
    Notes
    Custom credit bundles; dedicated Slack; DPA/BAA; custom contracts · Contact sales

Key features

  • Prompt engineering playground
  • AB testing and evaluations
  • RAG and document indexing
  • workflow orchestration
  • LLM observability and monitoring

Integrations

OpenAIAnthropicGoogle Vertex AIAWS BedrockCoherePineconeMongoDBSnowflake

Trust & compliance

Stage range
Seed → Growth
Founded
2022
Status
active
SOC 2
yes
GDPR
yes
Data residency
us
External rating
4.8 on G2 (30 reviews)
Last verified
Jun 2026

Reviews

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