Vellum Review 2026: AI, Pricing, Assistant, Login, Founder & FAQs

Vellum Brand Profile

Before we go into the details, here is a quick snapshot of the brand for readers who want the essentials at a glance.

Quick Take

Vellum is one of those AI brands that keeps showing up in the LinkedIn feeds of product managers, founders and engineering leaders, usually next to phrases like "shipping reliable AI agents" and "production grade LLM apps." When the NUBIA editorial team sat down to test it ourselves, we wanted to know if the buzz matched the experience. After several weeks of poking around the platform, talking to people who use it daily and comparing it to other tools in the same space, we landed on a rating of 2.7 out of 5. It is not a bad product. It is just a product where what you pay, what you get and how easy it is to use do not always sit in a comfortable balance, especially if you are not already a technical team.

This Vellum 2026 review walks through the AI capabilities, the pricing structure, the assistant experience, the login flow, the founder story, the general user experience and a set of frequently asked questions our research team kept seeing pop up online. We tried to keep this as honest and grounded as possible, the way we approach every brand we look at on NUBIA MAGAZINE.

What Is Vellum?

Vellum is an American software company that builds a development platform for AI products powered by large language models. The legal name behind the brand is Vocify Inc., and the team operates out of Manhattan, New York. In simple terms, Vellum gives product teams and developers a place to design, test, deploy and monitor AI workflows and AI agents without rebuilding the wheel every time a new model drops.

The platform sits in the LLMOps and agent orchestration category. Think of it as a control room for everything that touches your AI features, the prompts, the models, the evaluations, the deployments and the live monitoring. It connects to the major model providers like OpenAI, Anthropic, Google and Cohere, and it supports hosted options through Azure OpenAI, Fireworks, Perplexity and Cerebras.

In January 2026, the company rolled out a refreshed product positioning called Vellum for Agents, where the pitch became something like "just chat and let Vellum build reliable agents for you." That shift toward conversational agent building is a big part of how the brand is presenting itself this year.

Vellum AI: What the Platform Actually Does

The core of Vellum is its AI orchestration toolkit. The platform lets you build complex AI workflows using a visual editor, where each node can represent an LLM call, a code execution step in Python or TypeScript, a conditional branch, an API integration or a document retrieval action. For teams that prefer code, there is a software development kit for Python and Node, plus open source repositories on GitHub.

Headline Features

• Visual Workflow Builder. A drag and drop canvas where product people and engineers can sketch out agent logic together. You can prototype an idea in staging, evaluate it, then push it to production without rewriting your application code.
• Prompt Engineering Workspace. A library where you can version prompts, compare different variants side by side and keep a clean history of what changed and why. This is one of the strongest pieces of the product.
• Evaluation Suite. Vellum offers automated test runs, custom metrics, predefined quality checks and LLM as a judge style evaluations. The team has clearly invested heavily here, and it shows.
• Multi Model Support. You are not locked into one provider. The platform speaks to most major foundation model APIs, which protects you if pricing or quality shifts in the market.
• Agent Building via Chat. After the January 2026 launch of Vellum for Agents, you can describe what you want in natural language and the platform attempts to assemble an agent that matches the brief.
• Production Monitoring. Execution logs, latency tracking, cost visibility and observability tools so you can see what your agent is actually doing in the wild.
• Compliance. SOC 2 Type II and HIPAA, which is important for fintech, healthcare and regulated industries.

Where the AI Falls Short

In our testing, the workflow editor is powerful but the learning curve is steeper than the marketing copy suggests. People without an engineering background hit walls quickly when they try to do anything that is not a simple chat agent. The new chat to build feature is promising but it still misfires when the brief gets complicated, and you end up cleaning up nodes by hand anyway. The evaluation suite is strong, however interpreting the results requires a level of comfort with model evaluation that not every product team has on staff.

Vellum Pricing in 2026

Vellum pricing is one of the most discussed parts of the brand online, mostly because the company does not publish a clear, self serve table on its public site. As of mid 2026, the pricing page mainly directs prospects to a sales contact form, which a lot of small teams find frustrating.

Based on third party reviews, customer notes and the platform itself, here is the rough picture we kept seeing:

Free Plan

No credit card required. You get around 50 builder credits per month, one user seat, hosted agent apps, a debugging console and a small knowledge base of up to 20 documents. There are daily caps on prompt executions and workflow runs, which means you will outgrow this tier fast if you are doing anything beyond hobby projects.

Pro Plan

Reported by several independent reviewers to sit around 500 US dollars per month. This is the tier most paying teams land on. It opens up higher daily execution limits, more workflow runs, evaluation throughput and additional seats. The jump from free to Pro is steep, and that gap is a common complaint.

Enterprise Plan

Custom pricing through the sales team. This is where you get VPC deployment options, business associate agreements for HIPAA, configurable data retention, role based access controls and dedicated support. Pricing varies a lot depending on company size and use case.

Our Honest Take on Pricing

Vellum is clearly positioned for funded startups and enterprise buyers. If you are an indie maker, a solo developer or a small content team, the cost to value ratio gets uncomfortable quickly. The lack of public pricing also makes it hard to budget without booking a call, and that is a friction point for people who simply want to try a tool and decide. This is one of the bigger reasons our score sits at 2.7 rather than higher.

Vellum Assistant Experience

The Vellum Assistant refers both to the agents you build inside the platform and to the in product helper that walks you through tasks like setting up a workflow or configuring an evaluation. When the assistant works, it is genuinely useful. You can describe what you want in plain English, watch it draft a workflow and then refine it through follow up messages.

The assistant has memory of your workspace state during a session, can reference your prompts, your past evaluations and your deployments, and it tries to suggest improvements based on what is in your project. The persistent memory features rolled out across early 2026 are a real step forward compared to where things were a year ago.

Where it still stumbles, in our experience, is on multi step reasoning across very long projects. If your workflow has dozens of nodes and complex branching, the assistant can lose context, suggest fixes that conflict with earlier choices or hallucinate node names that no longer exist. It is best treated as a fast first draft partner, not a senior engineer.

Vellum Login: How It Works

Logging into Vellum is done at app.vellum.ai. You can sign up with a work email or use Google single sign on. For enterprise customers, the platform supports SAML based single sign on through identity providers, which fits typical company security policies.

The sign up flow itself is quick. You confirm your email, you land in the workspace, you are nudged toward a starter template and you are building within a few minutes. That said, several user reports across forums and review sites in 2026 mention occasional sign in hiccups, mostly around password resets and SSO redirects after extended periods of inactivity. Most of these are resolved by clearing the browser cache or contacting support, but it is worth flagging.

Security wise, the platform has SOC 2 Type II compliance, which is the baseline business buyers expect, and there are role based access controls on paid plans. Two factor authentication is supported. We did not encounter any red flags during testing, but we also recommend turning on 2FA from day one if you are storing prompts that touch sensitive data.

The Founder Story

Vellum was founded in 2023 by three people, Akash Sharma, Noa Flaherty and Sidd Seethepalli. Akash Sharma serves as Chief Executive Officer. Noa Flaherty and Sidd Seethepalli are listed as co founders with Chief Technology Officer level responsibilities across product and engineering.

Akash Sharma completed his undergraduate degree at the University of California, Berkeley, then spent around five years at McKinsey in their Silicon Valley office before launching Vellum. He has spoken publicly about the journey from idea to product, and one of the things he is known for is the early discovery process. He has said in interviews that he and the team spoke with more than a thousand people who were trying to use large language models in real production settings before settling on what to build.

The company went through Y Combinator in the Winter 2023 batch. Since then it has raised roughly 25.5 million US dollars in total funding, including a 20 million dollar Series A in July 2025 led by Leaders Fund with participation from Y Combinator, Socii Capital, Rebel Fund, Pioneer Fund and Eastlink Capital.

Our view of the founders is positive. They are technically credible, they write publicly about what they are learning, and they ship product updates often enough that the platform clearly has momentum. That does not automatically translate to a great experience for every user, but the leadership story is solid.

User Experience: The NUBIA Test

This is where Vellum gets a mixed report card from us. We split our review into four lenses, design and onboarding, day to day usability, support, and value for money.

Design and Onboarding

The interface is clean. It looks like a serious developer tool, not a toy. The starter templates are helpful, the documentation site is well organized and the example workflows give you a sense of what is possible. New users get an in product walkthrough that points to the right buttons. So far, so good.

Day to Day Usability

Once you get past the friendly templates, the platform asks a lot of you. You need to understand concepts like nodes, environments, evaluations, deployments and credentials. If you are a developer or an AI engineer, this is fine. If you are a product manager who was told this is a no code tool, you will feel misled. The marketing leans into accessibility but the reality is closer to low code with a strong code option.

Support

Customers on Pro and Enterprise plans report responsive support, with engineering aware of edge cases. Free tier users have a slower path to help, mostly through the community and documentation. This is typical for the category but it does shape who has a great experience and who has a frustrating one.

Value for Money

If you are a small team that does not have heavy LLM workloads, the value question is hard. The free plan is generous in feature scope but tight in usage. The Pro plan unlocks the platform but at a price point that demands real revenue or funding behind it. Enterprise customers seem to get strong value because the platform replaces a stack of internal tools they would otherwise build themselves.

Pros and Cons at a Glance

What We Like

• Genuinely strong evaluation and prompt versioning tools.
• Multi provider support that protects against vendor lock in.
• SOC 2 Type II and HIPAA compliance out of the box.
• Active product team that ships meaningful updates each quarter.
• Founder transparency through blog posts and public talks.
• Free tier exists, no credit card needed to try the platform.

What Frustrates Us

• Pricing is opaque on the public site and the Pro tier jump is steep.
• Marketing oversells the no code angle, the reality is closer to low code.
• Daily execution caps on the free plan are easy to hit during real testing.
• Chat to agent feature is promising but not yet reliable for complex briefs.
• Login issues after password resets show up in user reports, occasionally.
• Steeper learning curve for non technical teammates than advertised.

Frequently Asked Questions About Vellum (2026)

1. Is Vellum AI legit and safe to use?

Yes. Vellum is a venture backed company headquartered in New York, is part of the Y Combinator alumni network, holds SOC 2 Type II compliance and supports HIPAA workflows. From a credibility and security standpoint it sits comfortably alongside other serious developer platforms.

2. Who is the founder of Vellum?

Vellum was co founded by Akash Sharma, Noa Flaherty and Sidd Seethepalli in 2023. Akash Sharma is the Chief Executive Officer and the most public face of the company.

3. How much does Vellum cost per month?

There is a free plan with about 50 builder credits, one user seat and tight daily caps. The Pro plan is reported by several independent reviewers to sit around 500 US dollars per month. Enterprise pricing is custom and only shared after a sales conversation.

4. Does Vellum offer a free trial?

Yes. Vellum offers a free tier that does not require a credit card. You can sign up with a work email or Google account and start building right away, although you will hit the execution caps quickly if you are doing serious work.

5. Is Vellum really no code, or do I need to be a developer?

It is best described as low code. The visual editor lets non technical users assemble basic agents and workflows. Anything more advanced, custom logic, evaluations with custom metrics, complex branching, will be easier for a developer or an AI engineer.

6. Which AI models does Vellum support?

Vellum supports the major foundation model providers, including OpenAI, Anthropic, Google and Cohere. It also supports hosting options through Azure OpenAI, Fireworks, Perplexity and Cerebras. You can bring your own provider API keys for direct cost control.

7. How do I log in to Vellum?

You log in at app.vellum.ai using either your work email and password, Google single sign on, or SAML based single sign on if your company has set that up. Two factor authentication is available and recommended.

8. Has Vellum raised funding, and from whom?

Yes. Vellum has raised approximately 25.5 million US dollars in total. The largest round is a 20 million dollar Series A in July 2025 led by Leaders Fund, with participation from Y Combinator, Socii Capital, Rebel Fund, Pioneer Fund and Eastlink Capital.

9. What is Vellum for Agents?

Vellum for Agents is the product line the company launched in January 2026. The pitch is simple, you describe what you want in plain English and Vellum drafts an AI agent for you, which you can then refine inside the platform. It is the more conversational version of the original visual workflow editor.

10. Is Vellum worth it in 2026?

It depends on who you are. For funded startups and mid market teams shipping production AI, the answer is often yes. For solo builders, small content businesses or teams that just want a simple chatbot, the price and complexity make it harder to justify. That is the reason our final NUBIA score for Vellum lands at 2.7 out of 5, a fair but uneven offering.

Nubia Magazine Verdict 

Vellum is a serious product built by a serious team, and there are real users getting real value from it, particularly in regulated industries and at companies with engineering capacity. Where Vellum loses points with us is on accessibility, pricing transparency and the gap between how the brand markets itself and what it actually feels like to use on a daily basis if you are not already an AI engineer.

If you are evaluating Vellum, start on the free plan, build a small agent, hit the limits intentionally and only then talk to sales. If you are not in the target buyer profile, there are lighter and cheaper tools that may serve you better. Our final NUBIA rating for Vellum in 2026 is 2.7 out of 5.