Decision Circuits

Terms and data use

Last updated 20 September 2026. Plain language, because there isn't much to say.

Data

What happens to what you send

Your inputs are used to answer your request and are not stored. The text, image, or clip in a state is held in memory long enough to produce probabilities, then discarded when the response is sent. Nothing is written to disk, nothing is logged, and nothing is used to train anything.

What existsWhereHow long
A SHA-256 hash of your API key, the date it was issued, and its allowanceCloudflare KVUntil the key is retired
Your email address, only if you chose to give one when asking for a keyCloudflare KV, with that key recordUntil you ask us to remove it
Request counts, per key and in total, for rate limitingCloudflare's rate limiterA rolling minute
Standard edge traffic metrics: requests, status codes, response timesCloudflare analyticsCloudflare's retention

That is the complete list. There is no account and no profile. An email is optional — give one and it sits with your key record so there is a way to reach you about that key, nothing more. It is not used for marketing, not shared, and not sold, and it is deleted on request. Keys are shown once and stored only as a hash, so a lost key is gone rather than recoverable.

On the website

No analytics, no cookies, no trackers, no third-party requests. Fonts are served from this domain rather than a font CDN. The quiz keeps your answers and times in the page while you play and forgets them when you close the tab. The live demo runs entirely in your browser.

Where requests go

The API is a Cloudflare Worker in front of GPU containers on Modal. Both process request bodies in memory to serve the request. Neither is asked to retain them, and no other service sees your data — there is no third-party model provider behind this API. The models are the open weights linked on the front page.

Deletion

Write to hello@decisioncircuits.com and your key is revoked and its record, including any email you gave, is deleted. If you never gave an email, there is nothing of yours here to delete in the first place.

Terms

Using the API

The API is free, unmetered beyond its rate limit, and offered as-is with no warranty and no uptime commitment. It runs on scale-to-zero GPUs and may be slow, unavailable, or withdrawn. Do not build something that has to work on top of it without running the weights yourself — they are Apache 2.0 and yours to download.

The Python library and the model weights are Apache 2.0, which governs their use independently of this service.

Contact

A real person reads this

hello@decisioncircuits.com

Questions about the models, the data, a key, or anything on this site. For bugs, open an issue — it's faster and public.