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Vellum

https://vellum.ai/ Research Team Data
Active

AI development platform for designing, testing, deploying, evaluating and monitoring prompts, workflows, RAG pipelines, agents and production LLM applications.

Combines prompt management, workflow builder, deployments, online/offline evaluations, observability, release reviews, RAG and tool-calling/agent workflow support for production AI applications.

Positioning

LLM workflow, evaluation, and deployment platform

Key facts

HQ location
San Francisco, CA, USA
Founded
2023
Employee range
— (Unknown)
Funding stage
Series A
Company type
Private (Private)
Pricing model
Freemium Subscription (SaaS subscription; free/team/business tiers plus enterprise)
Last updated
Jun 21, 2026

Revenue estimate

Unknown

Valuation estimate

Unknown

Investments

$29.5M total; $20M Series A announced Jul 2025

Target customers

AI product, engineering, operations and business teams building production LLM systems

Key competitors

LangSmith, Humanloop, Galileo, Langfuse, Braintrust, PromptLayer

Known customers

Unknown

Classification (raw research text)

Core focus
LLM application development and evaluation
Core industry
Enterprise AI development / LLMOps
Core category
LLM workflow orchestration and evaluation platform

Shown verbatim from the research spreadsheet — deriving structured segment/industry tags from this text is a future phase.

Attribute breakdown

  • AI Workflows Primary focus
  • AI Automation / Business Process Automation Secondary feature
  • Agent Builder / Agent Configuration Primary focus
  • Multi-agent Orchestration / Runtime Secondary feature
  • System / API Integration Primary focus
  • Prompt Management / Prompt Engineering Primary focus
  • Retrieval-Augmented Generation Primary focus
  • Enterprise Search / Knowledge Management Secondary feature
  • AI / LLM Data Pipeline Secondary feature
  • Document AI / Document Processing Secondary feature
  • Model Deployment / Inference Infrastructure Primary focus
  • AI Quality Assurance / LLM Evaluation Primary focus
  • AI Observability / Monitoring Primary focus
  • AI Security / Guardrails Secondary feature
  • Data Privacy / PII / Confidential AI Secondary feature
  • AI Governance / Policy Management Secondary feature
  • AI Risk / Compliance Secondary feature
  • AI Asset Inventory / Model Registry Secondary feature
  • Human-in-the-Loop Review / Feedback Primary focus
  • Text Chatbots / Conversational Assistants Secondary feature
  • AI for Customer Experience / Support Automation Secondary feature
  • Analytics / BI / Decision Intelligence Secondary feature
  • Enterprise App / Internal Tool Builder Primary focus
Show all 32 attributes
  • AI Workflows Primary focus
  • AI Automation / Business Process Automation Secondary feature
  • AI Fine-tuning / Custom Model Training Not emphasized
  • Agent Builder / Agent Configuration Primary focus
  • Multi-agent Orchestration / Runtime Secondary feature
  • System / API Integration Primary focus
  • Prompt Management / Prompt Engineering Primary focus
  • Retrieval-Augmented Generation Primary focus
  • Graph RAG / Knowledge Graph Retrieval Not emphasized
  • Enterprise Search / Knowledge Management Secondary feature
  • AI / LLM Data Pipeline Secondary feature
  • Document AI / Document Processing Secondary feature
  • Model Deployment / Inference Infrastructure Primary focus
  • Traditional Machine Learning Not emphasized
  • AI Quality Assurance / LLM Evaluation Primary focus
  • AI Observability / Monitoring Primary focus
  • AI Security / Guardrails Secondary feature
  • Data Privacy / PII / Confidential AI Secondary feature
  • AI Governance / Policy Management Secondary feature
  • AI Risk / Compliance Secondary feature
  • AI Asset Inventory / Model Registry Secondary feature
  • Human-in-the-Loop Review / Feedback Primary focus
  • Call Transcription / Speech-to-Text Data Capture Not emphasized
  • Conversation Intelligence / Speech Analytics Not emphasized
  • Text Chatbots / Conversational Assistants Secondary feature
  • Voice AI Agents Not emphasized
  • Voice Infrastructure / STT / TTS Not emphasized
  • AI for Customer Experience / Support Automation Secondary feature
  • Sales / Revenue Intelligence Not emphasized
  • Analytics / BI / Decision Intelligence Secondary feature
  • Enterprise App / Internal Tool Builder Primary focus
  • Vertical-Specific AI Not emphasized