ChainForge vs Vellum
No clear leader: Vellum (57.3) and ChainForge (54.3) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
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.
ChainForge
A visual environment for systematically comparing and evaluating LLM prompts, models, and their responses through data flow workflows.
Vellum
A 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.
ChainForge
- OpenAI
- Google Gemini
- Alpaca
- Llama
- Dalai
- Ollama
Vellum
- Gmail
- Google Calendar
- Slack
- Telegram
- Web browsing
- Computer control
- Phone calls
- Image generation
- Coding
- App building
- Task management
- Google Workspace
- Notion
ChainForge 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.