SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.

Grapevine records 0 monthly visits with 0% month-over-month growth and Free pricing. Notion records 173,441,670 monthly visits with +0.1% growth and Freemium pricing.

Open-source unified company knowledge search for AI assistants
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | getgrapevine.ai | notion.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 (0) | 173.44M (173,441,670) |
| MoM Traffic Delta |
| 0 (0%) |
| +201.2K (+0.1%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (18.4%) |
|---|
| Direct Visits / mo | 0 | 135.18M |
|---|
| User Rating | 4.4 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|

Open-source unified company knowledge search for AI assistants
Connects to Slack, Notion, Linear, GitHub, Google Drive, HubSpot, Salesforce and more, then extracts, processes and embeds everything into one searchable index.
Exposes search, document retrieval and question-answering tools over the Model Context Protocol so assistants like Claude can query company knowledge directly.
Combines AI embedding-based semantic search with keyword search so users find the right document whether they search by meaning or by exact term.
Adds AI-powered question answering directly inside Slack so answers appear where teams already work.

The AI workspace where teams and agents get work done together
Combine docs, wikis, projects, and databases into one structured system of record that stays linked as your content grows.
Draft, summarize, translate, and answer questions inline, or build custom agents that automate recurring workflows around the clock.
Find answers instantly across Notion and connected apps, with citations so you can verify where each answer came from.
Use relations, rollups, views, and a large template gallery to model anything from a CRM to a content calendar.
SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.


SpecialistPowerful enterprise-wide search and knowledge discovery across apps, but lacks Notion's flexible doc creation.
#2
Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps


An AI operating system that models your whole university on one platform
Superior block-based typography and mobile note-taking experience, but fewer robust database and automation features.

Free / Open-sourcePut always-on AI agents on your team chat

AI-powered knowledge base that turns documents into fast answers

SpecialistExcellent developer-focused documentation and Git synchronization, but lacks general database and task management.

Multiplayer AI where people and agents work side by side
Built-in AI agents and automated workflows, but less refined document editing interface.

Free / Open-sourceTurn any document into AI-ready context with agentic parsing and extraction


SpecialistNetworked object-based knowledge management, but less suited for traditional folder hierarchies and task boards.
SpecialistInfinite visual canvas for brainstorming and diagramming, but less structured for text documents and wikis.
SpecialistPowerful enterprise-wide search and knowledge discovery across apps, but lacks Notion's flexible doc creation.
Free / Open-sourceOpen-source personal AI assistant that runs on your own machine and works from chat apps
An AI operating system that models your whole university on one platform
Superior block-based typography and mobile note-taking experience, but fewer robust database and automation features.
SpecialistExcellent developer-focused documentation and Git synchronization, but lacks general database and task management.
Multiplayer AI where people and agents work side by side
Free / Open-sourceTurn any document into AI-ready context with agentic parsing and extraction
SpecialistNetworked object-based knowledge management, but less suited for traditional folder hierarchies and task boards.