Workflows SDK
WORKFLOW EXAMPLE
Here's how to define a basic RAG graph using the SDK and UI while keeping edits in sync effortlessly.
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Unblock engineers, and get access to complete suite of tools for evaluating, debugging, and observing AI workflows, giving everyone the environment they need to succeed.
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Define, Evaluate, observe, repeat.

Making everyone an AI engineer
Use pre-built components for common AI operations: compare prompts, execute tools, add RAG and more.
Sync Code ↔ UI
Push and pull changes from the SDK to Vellum’s UI and vice versa, allowing for rapid development, debugging, and iteration.
Advanced Control Flow
Define and debug loops, recursion, and parallel branches with streaming support to emit intermediate and final outputs.
Flexible Deployment Options
Host and run yourself, or deploy to Vellum with support for user-defined dockerized runtimes.
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Our customers

Vellum made it so much easier to quickly validate AI ideas and focus on the ones that matter most. The product team can build POCs with little to no assistance within a week!
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Pratik Bhat
Sr. Product Engineer @ Drata

We sped up AI development by 50 percent and decoupled updates from releases with Vellum. This allowed us to fix errors instantly without worrying about infrastructure uptime or costs.
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Jordan Nemrow
Co-Founder & CTO @ Woflow

Vellum helped us quickly evaluate prompt designs and workflows, saving us hours of development. This gave us the confidence to launch our virtual assistant in 14 U.S. markets.
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Sebi Lozano
Sr. Product Manager @ Redfin
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FAQ

How can Vellum help me with AI development

Vellum helps product and engineering teams build reliable AI applications and ship them to production in weeks not quarters. The platform has tooling for all pain points with AI development: experimentation, evaluation, deployment, monitoring and collaboration. With Vellum you can build AI features of any complexity and closely track inputs and outputs at each step of the process.

Is Vellum suitable for non technical users

We designed Vellum to facilitate collaboration between developers and non-technical team members. Our product suite allows product managers and subject matter experts to contribute to AI development without needing to write code.

How can Vellum help me with AI development

Vellum helps product and engineering teams build reliable AI applications and ship them to production in weeks not quarters. The platform has tooling for all pain points with AI development: experimentation, evaluation, deployment, monitoring and collaboration. With Vellum you can build AI features of any complexity and closely track inputs and outputs at each step of the process.

What developer tools does Vellum provide

Vellum helps product and engineering teams build reliable AI applications and ship them to production in weeks not quarters. The platform has tooling for all pain points with AI development: experimentation, evaluation, deployment, monitoring and collaboration. With Vellum you can build AI features of any complexity and closely track inputs and outputs at each step of the process.

How does Vellum integrate with other tools and Workflows

Vellum helps product and engineering teams build reliable AI applications and ship them to production in weeks not quarters. The platform has tooling for all pain points with AI development: experimentation, evaluation, deployment, monitoring and collaboration. With Vellum you can build AI features of any complexity and closely track inputs and outputs at each step of the process.

What developer tools does Vellum provide

Vellum helps product and engineering teams build reliable AI applications and ship them to production in weeks not quarters. The platform has tooling for all pain points with AI development: experimentation, evaluation, deployment, monitoring and collaboration. With Vellum you can build AI features of any complexity and closely track inputs and outputs at each step of the process.