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SPECIFICTION
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Langflow vs Vellum

Langflow

langflow.org

Vellum

vellum.ai

Side by side

FigureLangflowVellum
Price from—$30/mo
Free plan—Yes
Free trial——
Open source—Yes
WebYesYes
WindowsYesYes
macOSYesYes
LinuxYes—
iOS—Yes
Android—Yes
APIYesYes
Self-hostedYesYes
Plans published09
Spec score · LLM Application Development Frameworks7.6 (#11)8.6 (#2)
Spec score · Tool Calling7.5 (#14)8.6 (#6)
Spec score · AI Agent Platforms7.5 (#51)8.7 (#9)
Spec score · Ai Automation7.5 (#21)8.7 (#4)
ExtensibilityUsers can create custom Python components for personal use or to share with other Langflow users.Users can create custom skills and connect MCP servers when an existing built-in tool does not cover a task.
IntegrationsThe homepage lists integrations including Anthropic, Azure, OpenAI, Hugging Face, Ollama, Qdrant, Pinecone, Slack, and Google Drive.OAuth integrations include GitHub, Notion, Linear, Airtable, Spotify, Gmail, Google Calendar, Slack, and other services, while MCP servers provide additional tools.
SupportThe official site links to community help on Discord, professional services, and Premier Support.Vellum lists support contact as [email protected].

Plans

Langflow

No plans published.

Langflow pricing →

Vellum

  • BaseFree
  • FreeFree
  • Mighty$30 a month
  • Mighty$30 a month
  • Custom$50 a month
  • Super$100 a month
  • Super$100 a month
  • Ultra$200 a month
  • Ultra$200 a month

Vellum pricing →

In their own words

Langflow

Langflow has no write-up on Specifiction yet; its figures are above.

Visit langflow.org

Vellum

Vellum is a personal AI assistant that can read files, manage calendars, send email, run code, and control a computer. It saves preferences and context in its workspace for later conversations, and users can create, install, and manage skills. Listed OAuth services include Discord, GitHub, Google services, HubSpot, Linear, Twitter (X), Asana, Notion, Microsoft Outlook, and Todoist. Vellum says OAuth tokens stay in a credential vault rather than being exposed to the language model. Sensitive actions prompt for approval, and users can set trust rules for standing permissions. By default, conversation context is sent to Anthropic to generate responses; OpenAI, Google, OpenRouter, Fireworks, and local Ollama are listed alternatives. An internet connection is required. Vellum Cloud runs assistants in isolated environments with private storage and 24/7 availability. The Free plan includes first tasks and pay-as-you-go credits. Mighty costs $30 a month, Super $100 a month, and Ultra $200 a month. There is no shipped Linux desktop client, but Linux users can use the web app, Chrome extension, or self-host the runtime.

Visit vellum.ai