sandbox.opik.net
No agenda.
Just playing.
Experiments without order, necessity, or purpose. A real playground — not a book, not a course. Drop something here, see what happens.
Experiments
Each experiment is standalone. No prerequisites, no sequence.
New
01
Embeddings
Type two phrases, get their vector representations, compare cosine similarity in real time. All-MiniLM-L6-v2 runs entirely in the browser — no server, no API.
New02
Semantic Search
Build a phrase collection, store embeddings in PGlite (Postgres in WebAssembly), search by meaning. 100% in-browser, IndexedDB persistent.
Soon
03
Briscola
Italian card game with a reinforcement learning agent. Watch it learn — or play against it.
Soon
04
Pong
Two agents, self-play, emergent behavior from minimal reward signal.
Soon
05
Genetic Algorithms
Watch evolution happen in real time. Mutation, selection, local optima.