AI assistants and search decision
Kome
A competent developer can build a useful replacement (extension + small backend) in a few weeks using available open-source components; Kome's value appears to be convenience and polish rather than unreplicable data or infrastructure.
Visit website↗$5.99/mo
$72/yr
Read off the official pricing page.
$100one-off48 h to build
$60/mo3 h/mo upkeep
On cash alone, building overtakes the subscription at 12 seats.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- User clicks extension on a webpage → extension extracts page/YouTube/PDF content → send content to an LLM transcription/summarization API → store summary + metadata in a bookmark store → allow search and use bookmarks to generate composed outputs (tweet, email, blog outline).
What it still won’t have
- Hosted analytics, usage dashboard and paid-subscription billing
- Priority support and SLA-backed uptime
- Polished cross-browser release pipeline and automatic updates via extension stores
- Any proprietary optimizations or vendor-side credit management
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 12 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a browser extension in TypeScript using React for popup UI and Manifest V3, plus a minimal Node.js + Express backend (Postgres or SQLite) for optional sync. Scope: 1) extension popup and context-menu to capture active tab and page URL; 2) page content extractor (readability/article parser), YouTube transcript fetcher, and PDF text extraction; 3) integrate with an LLM summarization API (configurable OpenAI-compatible endpoint) with request queuing, credit counting, and error handling; 4) bookmark storage and simple full-text search API; 5) 'Compose' endpoint that generates tweets/emails/blog outlines from selected bookmarks. Out of scope: enterprise billing, analytics dashboards, multi-user permissions, and browser-extension store publishing automation. Include unit tests for backend routes, integration tests for the extension-to-backend flow, robust error handling, retry/backoff for API calls, and CI that runs tests.
How we checked
How the score was reached
- Partly verdict base52
- 2 cited sources+1
- Price verified on pricing page+3
- Evidence score56
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 2
Every page the run actually retrieved.
- official productKome: AI Summary and Bookmark Extension (homepage)
- official pricingKome Pricing (homepage section)
Integrity checks
What held up, and what did not.

