Capacities vs Notion AI: pricing, features and which to choose

Capacities is a personal knowledge-management and note-taking app made by Capacities Labs GmbH in Germany. Steffen Bleher and Michael von Hohnhorst started the company in 2020, and the product entered public beta in 2022. It runs on the web, Windows, macOS, Linux, iOS and Android. The company describes itself as bootstrapped with no outside investors, while CB Insights records a different funding history involving Media Lab Bayern. Capacities reports more than 50,000 active knowledge workers and a six-person remote European team. Its defining choice is to treat notes as typed objects, such as people, books, projects and meetings, rather than as unstructured pages.

A typical workflow starts in daily notes, imported material, or captured media. Users turn that material into typed objects, add properties, connect entries with backlinks, then retrieve information through full-text search, smart queries, related content and the graph view. Tasks, whiteboards and calendar integration extend the workspace beyond notes. The in-app assistant can use selected notes or search context, and saved conversations become searchable objects. AI Chat Connectors use MCP, allowing supported clients such as ChatGPT, Claude and Cursor to search, read, create and update objects, append content and work with media. Capacities recommends searching or listing first instead of asking an external client to read an entire workspace.

Capacities is cloud-only, lacks end-to-end encryption, and does not offer team accounts or realtime collaboration. Its object model can take time to learn, while regular AI use requires Plus or additional top-ups. Notion offers broader shared workspaces, pages and databases. Obsidian stores local Markdown files and supports plugins, while Capacities provides hosted sync and structured objects. Anytype takes a local-first, open-source-oriented approach, unlike Capacities' hosted service. Tana focuses on structured outliner workflows and team use, whereas Capacities is more explicitly personal. Pick Capacities if you want an individual knowledge base built around typed objects, linked notes and optional AI.

Notion AI is Notion Labs’ embedded assistant for workspaces combining notes, documents, tasks, and databases. Launched in 2022 and generally available in 2023, it now drafts and edits pages, answers workspace questions, researches topics, transcribes meetings, searches connected apps, generates formulas, autofills databases, and runs scheduled Custom Agents. Auto routes requests among available models, while named options include Opus 5.5, Astra, Fable, Claude Sonnet 4, GPT-5, GPT-4.1, and Claude 3.7 Sonnet, with availability varying by plan. Free costs $0 and Plus $10 per member monthly, both offering limited AI trials; Business is $20 with AI included, while Enterprise is custom priced. Compared with ChatGPT and Claude, Notion offers deeper page context; Otter.ai remains stronger for dedicated transcription. It suits teams already organized in Notion, but users should verify outputs and monitor credit limits.

A typical request starts in a Notion page, database, or chat, where users can ask Notion AI to draft, summarize, rewrite, translate, generate formulas, create databases, or answer workspace questions. Notion Agent extends this workflow by creating and editing pages and databases while using permitted workspace, connected-app, and web context for multi-step tasks. Research Mode builds detailed reports from workspace and web information, while AI Meeting Notes transcribes conversations, summarizes key points, and extracts follow-ups. Enterprise Search combines Notion with Slack, Google Drive, and GitHub, returning answers with citations. Custom Agents automate recurring work through schedules or triggers, and AI blocks insert generated content into ordinary pages. Database Autofill populates properties, making routine classification and enrichment faster without leaving the workspace.

Notion AI is best understood as an AI layer inside a team workspace rather than a purely standalone chatbot. Its value comes from combining page-aware answers, writing assistance, database autofill, meeting transcription, research reports, and agents that can create or edit Notion content while using connected-app and web context. Auto routes tasks among available models, while users may access named options such as Claude Sonnet 4, GPT-5, GPT-4.1, Opus 5.5, and Astra, depending on plan and availability. Free and Plus include limited trials; Business costs $20 per member monthly, and Enterprise is custom priced, with credits, limits, and provider-retention policies requiring attention. ChatGPT and Claude are stronger general assistants, while Otter.ai focuses more narrowly on transcription. Notion AI suits knowledge-centered teams that accept usage controls and fact-checking.