SOM or DOM

Paste a URL. Watch SOM beat DOM.

DOM is built for rendering. SOM is built for meaning. This tester shows tokens, speed, and cost side by side.

Try: docs.plasmate.app Or: nytimes.com Share results with: ?url=...

Speed race - ms DOM, - ms SOM

Compression

DOM tokens (est.)

SOM tokens (est.)

GPT-4 input cost (est.)

SOM Score

Score considers compression, structure, and content coverage. High score means your page is easy for AI agents to understand.

GitHub

DOM

Raw HTML snippet

Waiting...

SOM

Semantic output snippet

Waiting...

SOM (Semantic Object Model) is a structured, token efficient representation of a web page. It keeps meaning and throws away layout noise.

Agents pay for tokens and time. SOM reduces both, so your agent can browse more pages, faster, for less money.

Plasmate Docs SOM spec Benchmarks W3C Community Group Awesome Plasmate