Rivet vs Vellum
On the evidence we track, Vellum leads this comparison with a composite score of 57/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for prompt management. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Rivet
An open-source desktop IDE and TypeScript library that enables teams to visually design, debug, and deploy complex LLM-powered agent applications with real-time execution monitoring and collaborative features.
Vellum
LeaderA personal AI assistant that runs locally or in the cloud, maintains long-term memory, automates tasks across your tools and files, and is available across all your devices.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Rivet
- OpenAI GPT-3.5
- OpenAI GPT-4
- Anthropic Claude Instant
- Anthropic Claude 2
- Anthropic Claude 3 Haiku
- Anthropic Claude 3 Sonnet
- Anthropic Claude 3 Opus
- Google Gemini
- OpenAI
- Anthropic Claude
- Anthropic
- AssemblyAI
- Gemini
- MCP
Vellum
Leader- Gmail
- Google Calendar
- Slack
- Telegram
- Web browsing
- Computer control
- Phone calls
- Image generation
- Coding
- App building
- Task management
- Google Workspace
- Notion
Rivet or Vellum: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.