Flowise vs Vellum
A side-by-side comparison of two ai agents tools — pricing, integrations, and the trade-offs that matter — so you can pick the right fit fast.
| Feature | Flowise | Vellum |
|---|---|---|
| Category | AI Agents | AI Agents |
| Pricing | Freemium · from Free | Paid · from Custom pricing |
| Best for | Developers, Product Managers | Developers, Product Managers |
| Use cases | Building AI agent workflows visually without heavy coding, Chaining language models and tools together, Prototyping and deploying LLM-powered applications | Testing and evaluating prompts systematically, Building production-grade LLM applications, Iterating on AI agent workflows before deployment |
| Integrations | OpenAI API, Pinecone, GitHub | OpenAI API, Anthropic API, API |
| Rating | — | — |
| Website | Visit Flowise | Visit Vellum |
Flowise
Open-source low-code tool for visually building LLM-powered agent workflows.
Pros
- +Visual drag-and-drop interface reduces coding requirements
- +Supports chaining multiple LLMs, tools, and data sources
- +Open-source with self-hosting options for full control
Cons
- –Complex workflows can still benefit from coding knowledge
- –Visual builders can become unwieldy for very large workflows
Vellum
Development platform for building, testing, and deploying production LLM agents.
Pros
- +Provides systematic prompt testing and evaluation tools
- +Helps teams iterate on agent workflows before production deployment
- +Built specifically for production LLM application development
Cons
- –Most valuable for teams building and iterating on LLM apps regularly
- –Requires some technical setup to integrate into existing pipelines
Flowise vs Vellum FAQ
- Is Flowise better than Vellum?
- Neither is universally better — both are ai agents tools. Flowise (Freemium, from Free) is a strong fit for Building AI agent workflows visually without heavy coding, while Vellum (Paid, from Custom pricing) suits Testing and evaluating prompts systematically. Pick by your primary use-case and budget.
- What is the main difference between Flowise and Vellum?
- Flowise focuses on "Open-source low-code tool for visually building LLM-powered agent workflows." whereas Vellum focuses on "Development platform for building, testing, and deploying production LLM agents.". Their pricing starts at Free and Custom pricing respectively.
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