What is Vellum
Vellum's current product is a persistent personal AI assistant with memory, voice, web search, skills, plugins, scheduled work and managed or self-hosted deployment. This replaces the older developer-platform positioning associated with the same domain.
Plans
As of September 9, 2026, Free costs US$0, Mighty costs US$30 per month, Super costs US$100 per month and Ultra costs US$200 per month. A Custom option lets buyers tailor CPU, memory, storage or token capacity.
Mighty includes a small computer with 1 vCPU, 2GiB of memory and 10GB of storage. Super includes 2.5 vCPU, 5GiB of memory, 30GB of storage, email support and a custom subdomain. Ultra includes 4 vCPU, 8GiB of memory, 60GB of storage, email support and a custom subdomain. Managed usage is credit-based at US$1 for one credit; credits cover routed LLM inference, search, image generation and other paid services.
Self-hosting and usage
Vellum Assistant is open source and can be self-hosted without the managed platform fee, but the user supplies infrastructure and model credentials. Managed-plan credits cover routed LLM inference, search, image generation and paid third-party services.
Official sources: Vellum release notes and current plans, Vellum pricing and billing explanation.