Vellum

Platform to build and evaluate LLM apps.

4.0

editorial rating

·FreemiumLow risk

Last updated May 29, 2026

Quick verdict — is Vellum worth it?

A low-risk, useful option for faster coding. Our editorial rating is 4.0/5, with a 79/100 trust score and low scam-risk. Pricing starts at Free trial · paid.

Overview

Vellum is platform to build and evaluate llm apps. It targets coding, business use cases on paid plans. The rating, trust score and scam-risk signal below are informational estimates compiled from public information, product documentation and user-submitted reviews — not factual claims about the company.

How to read this: Scores are informational estimates from public information, product docs and user-submitted reviews — not factual claims about any company. A higher scam-risk signal reflects user-reported concerns or unverified marketing, not proven wrongdoing. Always confirm current pricing and terms with the provider.

The verdict

A low-risk, useful option for faster coding.

Pros

Prompt + eval workflows
Collaboration
Production tooling

Cons

For teams
No permanent free tier

Best for

Faster coding
Debugging
Learning codebases

Not great for

Non-developers
Fully unattended production work

Main features

AI code generation

Editor integration

Chat assistance

Multi-language

Pricing breakdown

Popular

Pro

Custom

per month

Full access
All core features
Support

Pricing shown is an informational estimate and may change. Confirm on the official site before purchasing.

Our editorial review

Reviewed by Daniel Reyes, Developer Tools & Infrastructure EditorUpdated May 29, 2026 · How we review

Vellum is platform to build and evaluate LLM apps, aimed at coding, business.

Its main strengths are prompt + eval workflows and collaboration. The trade-offs to weigh are for teams and no permanent free tier. Pricing and billing appear transparent with no notable red flags in aggregated user reports.

A low-risk, useful option for faster coding.

What is Vellum?

At its core, Vellum positions itself as an AI coding tool aimed at developers and businesses and teams. The product is aimed at developers and businesses and teams, which is worth keeping in mind when you weigh it against more general-purpose alternatives. The standout reason people choose it is prompt + eval workflows, alongside collaboration. That said, no tool is right for everyone, so the rest of this review focuses on where it fits and where it does not.

Vellum pricing and value

Pricing for Vellum begins at Free trial · paid. Without a free plan, the smart approach is to start on the cheapest monthly option rather than committing to an annual plan up front. As with most software, the per-month price only makes sense if the tool removes a bottleneck you hit regularly. We did not find a meaningful pattern of billing complaints, which is a positive signal for a tool at this price point.

Who should use Vellum?

The clearest fit is developers and businesses and teams: if that describes you and prompt + eval workflows matters to your work, Vellum is worth a serious look. It shines on common coding tool jobs rather than rare edge cases, which is exactly where most users spend their time. It is a weaker choice when for teams is a hard requirement, or when no permanent free tier would slow you down.

Is Vellum trustworthy and safe?

We rate Vellum at a high confidence level — an informational estimate, not a verdict, drawn from public sources and user reviews. The scam-risk signal is Low, meaning we did not surface the patterns — opaque billing, blocked cancellations, or wildly unrealistic promises — that warrant extra caution. None of this replaces your own due diligence: confirm the latest pricing, privacy practices and refund policy on the official site before deciding. Reviewers have not raised systemic concerns about reliability beyond the usual limitations of the category.

Vellum review: the bottom line

The bottom line: Vellum is a solid pick for the right user. For users who value prompt + eval workflows and can live with for teams, it is a sensible choice to shortlist. Use any available trial to validate quality, and prefer a monthly plan until you are confident. We keep these reviews current as the market shifts — the update date above reflects our latest pass.

Potential red flags

No significant red flags identified in available public information or user reports.

Positive signals

Clear, published pricing
Active product with a real user base
No significant billing complaints in aggregated reports

How we scored trust

An informational composite of the signals below. Not a factual judgment about the company.

User rating84

Review volume70

Billing clarity84

Refund policy clarity70

Support responsiveness70

Website transparency84

Realistic claims84

Public reputation84

Our read on public sentiment

Users generally find Vellum useful with some caveats, with feedback centering on for teams rather than trust or billing problems.

This is our editorial summary of publicly-available user feedback and reviews from around the web — not reviews collected on this site. Verified reviews submitted here appear in the section below.