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Head to head · 2026

Dify vs Vellum

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Dify

A fuller LLMOps platform, not just a flow visualizer

4.4$59/mo

Visit Dify (opens Dify in a new tab)

Vellum

A workbench for testing and comparing prompts, not deploying workflows

4.3Free

Visit Vellum (opens Vellum in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Vellum does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Dify

    4.4 against 4.3

  • Same job?

    Yes

    Both are Automation tools

Side by side

Compared onDifyVellum
Our rating4.4Better4.3
Starts at$59/moFree
Free planYesYes
CategoryAutomationAutomation
PlansFrom $59/moFree
Key features
  • Visual builder for RAG pipelines and agent workflows
  • Built-in production observability and usage monitoring
  • One-click deployment to API or embeddable chat widget
  • Full self-hosting support
  • Open-source with a managed cloud option
  • Prompt engineering and evaluation workbench
  • Side-by-side comparison across LLM providers and models
  • Test-case-based output quality comparison
  • Collaborative prompt management for teams
  • Production monitoring for deployed prompts
Pros
  • Covers the full lifecycle from building to deploying to monitoring
  • Self-hosting available for data control requirements
  • Open-source foundation with active development
  • Fills a genuine gap most workflow tools skip entirely
  • Side-by-side model comparison speeds up choosing the right LLM
  • Collaborative features suit teams iterating together on prompts
Cons
  • Broader scope adds complexity versus simpler single-purpose builders
  • Managed cloud pricing sits above some lighter competitors
  • Best value requires actually shipping to production, not just prototyping
  • Not a workflow or automation builder itself, a narrower, earlier-stage tool
  • Full value depends on actively developing an AI feature or product
  • Less relevant for someone who just wants to connect apps together
CompanyLangGenius, founded 2023Vellum, founded 2023

Prices come from each vendor's pricing page, last checked 20260703. Check the vendor before you buy.

FAQ

Questions people ask

Is Dify better than Vellum?

In our reviews Dify scores 4.4 and Vellum scores 4.3. The better pick depends on the job. Dify: A fuller LLMOps platform, not just a flow visualizer. Vellum: A workbench for testing and comparing prompts, not deploying workflows.

Which is cheaper, Dify or Vellum?

Dify: from $59/mo. Vellum: free.

Do Dify and Vellum have free plans?

Yes, both have a free plan.

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