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What is Vellum?

Vellum is a powerful AI-driven personal assistant platform designed to automate tasks, manage workflows, and enhance productivity across digital environments. It allows users to create a single assistant that operates consistently across web, mobile, desktop, and command-line interfaces. The platform can handle a wide range of activities, including inbox management, meeting scheduling, communication, and even app development tasks. Vellum assistants are equipped with a persistent memory system that captures user preferences, habits, and contextual information. This enables the assistant to provide highly personalized and adaptive support over time. The platform integrates with multiple communication channels such as Slack, email, Telegram, and phone systems to centralize task management. Vellum supports advanced automation, including summarizing conversations, managing calendars, and executing workflows autonomously. It includes a structured memory framework that tracks patterns, routines, and user-defined rules for better decision-making. Security and privacy are core priorities, with credentials stored securely in local or isolated environments. Users retain full control over permissions, ensuring the assistant operates within defined boundaries. Vellum ensures that personal data is not used for AI training, maintaining strict privacy standards. The platform is designed to reduce cognitive load by handling repetitive tasks efficiently. Vellum empowers users to focus on meaningful work while their assistant manages the rest.

What is Tab?

Tab is an AI-powered personal assistant that allows users to delegate tasks, manage activities, and complete online transactions through text messages. The service is designed to perform actions on behalf of users rather than limiting its functionality to answering questions or generating recommendations. Users can request assistance with booking flights, modifying hotel reservations, scheduling appointments, purchasing replacement parts, and completing other everyday tasks. Tab supports natural-language instructions and accepts photos, screenshots, PDF documents, and videos as additional inputs. Its document and media capabilities include extracting information, converting PDFs into spreadsheets, creating files, editing images and video clips, and generating new images, audio, and video. The assistant has access to its own computer and browser environment, enabling it to navigate websites, complete online forms, and work with accounts that users choose to connect. Tab can also place telephone calls to businesses, wait on hold, ask questions, and report the results through the user's messaging conversation. Its persistent conversational context helps maintain continuity between interactions, reducing the need for users to explain previous requests or ongoing tasks repeatedly. For assignments requiring additional time, Tab can continue working after the user leaves the conversation and provide short updates as progress is made. When purchases, reservations, or invoice payments involve spending money, the assistant presents the item or service, total cost, and payment recipient for review before requesting authorization. Following an approved transaction, Tab can provide receipts, communicate confirmation details, and track subsequent developments within the same message thread.

Media

Media

Integrations Supported

GitHub
Linear
Notion
Slack
Claude
Claude Fable 5.1
Claude Fable 5.5
Claude Haiku 4.5
Claude Mythos 5
Claude Opus 4.7
Claude Sonnet 4.6
Deepgram
ElevenLabs
Telegram
Twilio
Vercel

Integrations Supported

GitHub
Linear
Notion
Slack
Gmail
Google Calendar
WhatsApp
iMessage

API Availability

Has API

API Availability

Pricing Information

Pricing not provided

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Supported Platforms

SaaS
iPhone
iPad
Mac

Supported Platforms

SaaS
Android
iPhone
iPad

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Vellum AI

Date Founded

2023

Company Location

United States

Company Website

www.vellum.ai/

Company Facts

Organization Name

Tab

Date Founded

2026

Company Location

United States

Company Website

tab.bot/

Categories and Features

AI Agents

Not specified

AI Assistants

Not specified

Categories and Features

AI Agents

Not specified

AI Assistants

Not specified

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