Playground

Paste a state, define typed questions, and read the probability for every allowed answer. This panel calls the site’s own decision API; the community demos of each model are one click away.

Questions — typed questions with allowed answers

Decision

Your decision appears here. Nothing is stored without your consent.

Free tier: 25 decisions per day per browser session. Paid plans raise the limit and issue an API key.

Community demos

Run each model in its own frame

Two community-hosted playgrounds, one per model size. The frames load lazily so they never slow the rest of the page.

Clef-Flash playground community-hosted

Community-hosted demo of the 9B model. Runs live in your browser session.

Clef playground community-hosted

Community-hosted demo of the 27B model. Larger, slower, more precise.

Frequently asked questions

Do I need an account?

No. The playground and a daily allowance of free decisions work without signing up.

Where does the answer come from?

The embedded demos run on community-hosted infrastructure; the panel above calls this site’s own decision API. Both use the same state-plus-schema contract.

What happens if the live model is down?

The API answers with a deterministic scorer and marks the response as degraded, so you always get a distribution rather than an error.

Do you store what I paste?

We store the count, the model and the latency — not the state. See the privacy policy for the exact list.

Put it in your stack

The docs page has the request shape, the error list and copy-paste examples in JavaScript and Python.

Model notes

One short email when a new decision model lands or a benchmark changes. No spam, unsubscribe in one click.