OpenClaw
77Open-source, self-hosted AI assistant you message from WhatsApp, Telegram, Slack and 10+ other chat apps
3 products our research names as a replacement for Vellum in Personal AI Assistants, each with what it does differently — prices, API and status from our own checks rather than from the vendors’ own pages.
Open-source, self-hosted AI assistant you message from WhatsApp, Telegram, Slack and 10+ other chat apps
General assistant with tools, memory, files and voice
from $8 against $30
Vellum vs ChatGPT →Assistant focused on long documents and code work
from $17 against $30
Vellum vs Claude →Not named as direct replacements — the neighbours in the same part of the catalog, best-rated first.
Fetch.ai's assistant and OpenAI-compatible API whose models hand work off to specialist agents
A downloadable AI companion with persistent memory that runs locally across desktop, mobile, and chat apps.
Ad-free weather forecasts and radar, with an AI chat for planning around conditions.
Phone-based assistant that screens and places calls, runs web research and posts to social accounts
Apple-only assistant bundling an AI keyboard, chat, smart notes and transcription
Multi-model AI butler that shops, books, and researches for you inside one chat thread.
Email-based AI assistant you CC to trigger scheduling, CRM updates and task automation across 100+ connected tools.
SMS assistant that keeps an editable memory of your reminders, routines and personal facts, and texts you first.
Desktop agent workspace that runs off your calendar and connects tools over MCP
Sells a one-time structured report that compares 2-3 options or maps recurring decision patterns.
Cross-app AI assistant that sits in the background, joins meetings for notes, and answers questions using context it already has.
Self-hosted AI assistant with persistent memory that ingests email, files, and calendars, free to run yourself.
Not what you were after? Browse all Personal AI Assistants →