Small experiments.
Visible decisions.
Change the state. Inspect the distribution. Decide what your code should trust.
No model runs by default. Illustrative mode uses fixed synthetic numbers, not Jev or Kev. Real providers send your state only when you press Run. Browser-native Kev is not implemented. Jev rejected the Pages-origin CORS preflight; use the optional local relay for hosted APIs. Why?
Choose where decisions run
Local relay keeps keys in process memory only and forwards solely to TypeSafe, OpenAI or Anthropic. It is not offered on Pages. Kev still uses its loopback endpoint directly.
Illustrative mode never reads or understands the text. It returns a synthetic distribution favouring the first option. No AI or network call.
Choice / Score: gate on returned confidence. Noul: positive if p ≥ threshold, negative if p ≤ 1 − threshold, otherwise review. This is a teaching policy, not a calibrated production threshold.
Decision & distribution
Ready. Illustrative mode is not AI.
No action applied.
Request, response and provenance
Run an experiment to inspect the exact request and response. Keys are never included.
Make another experiment
A normal LLM writes a validated JSON specification; Jev or Kev makes its decisions. The fixed renderer supplies the controls and charts. This generator does not create arbitrary HTML, JavaScript, bespoke games or executable tools. Review its output before loading.
Generate sends this idea and the system prompt to the selected provider. It does not include your current experiment, decision key or prior results. Account access, billing and browser CORS must permit direct calls.
No generation yet. You can edit the checked example without a key.
Unsupported fields, code and invalid question schemas are refused. Strings resembling HTML remain plain text. Loading never calls an API.
Next experiment: unfamiliar labels, with and without examples · Why can a decision model be fast?