Overview

Capacities AI — Object-based note-taking with AI

Capacities is a personal knowledge management tool that organizes information by object type — people, books, projects, concepts — rather than folders. AI features include writing assistance, content generation and intelligent connections between objects.

Object-based organization

AI writing assistant

Graph view of connections

Daily note workflow

Features & capabilities

Everything it does, in plain English.

FeatureObject-based organizationIncluded

FeatureAI writing assistantIncluded

FeatureGraph view of connectionsIncluded

FeatureDaily note workflowIncluded

FeatureBlock-based editorIncluded

PlatformsWeb · iOS · Android

The honest take

Where it shines, where it stumbles.

✓ Pros

✓Unique object-based approach
✓Beautiful design
✓Strong graph connections

! Watch-outs

!Newer product
!Less mature than Notion
!Smaller community

Who it's for

Where Capacities AI pays for itself fast.

— Use case

Personal knowledge base

— Use case

Reading and book notes

— Use case

Network and relationship management

Community reviews

Share your take on Capacities AI

4.1

★★★★★

2 reviews

5★

4★

3★

2★

1★

Sofia P. ✓ Verified

Engineering Manager · GitHub

★★★★★

2 months ago

Decent but has room to grow

Has potential, but needs polish. The ROI was clear within the first week of using it. The outputs require minimal editing — saves so much back-and-forth. Occasional slowdowns during peak hours.

Matthew B. ✓ Verified

Engineering Manager · Airbnb

★★★★★

4 months ago

Best in class, no question

Blown away by the quality. The onboarding flow was smooth and I was productive from day one. My team adopted this immediately after I shared it with them. Best tool in this category, hands down.

Nathan J. ✓ Verified

Consultant

★★★★★

10 months ago

Happy with my subscription

Genuinely useful — glad I tried it. The output quality surprised me — it actually sounds human. I've recommended this to at least 10 colleagues already. The collaboration features are genuinely well thought-out. Some features feel half-baked — hopefully they'll improve.

Amanda A. ✓ Verified

Copywriter · Meta

★★★★★

11 months ago

Disappointing experience

Customer support left a lot to be desired. The interface is intuitive enough that I didn't need to read any docs. Customer support responded within hours and solved my issue. Wish the free tier had slightly higher limits.

Ananya P. ✓ Verified

Frontend Engineer · an e-commerce company

★★★★★

1 years ago

Useful and reliable

Does what it promises and does it well. I've tried 5 similar tools and this one is clearly the best in class. Performance is fast — no noticeable latency even on large inputs.

Kai H. ✓ Verified

Product Designer · an e-commerce company

★★★★★

1 years ago

Very useful, mostly polished

Recommended for anyone in my field. It integrates well with VS Code / Slack / Notion — my daily drivers. I use this daily and it's become essential to how I work. The outputs require minimal editing — saves so much back-and-forth. Occasional slowdowns during peak hours. A staple in my tech stack now.

Brittany L. ✓ Verified

Researcher · Amazon

★★★★★

1 years ago

Exceptional quality and value

Can't imagine working without it now. The free tier is genuinely generous compared to competitors. The output quality surprised me — it actually sounds human.

Adam J. ✓ Verified

Senior PM · my own agency

★★★★★

1 years ago

The best product I've used

Game changer for my workflow. I've recommended this to at least 10 colleagues already.

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