Analysts: Dave, Sam & Deb

Quantesta gives you three analysts. Pick one from the selector in the composer; your choice carries to the next chat. In the selector, each analyst’s row shows a credit cost and small capability icons — the eye marks image vision (Deb), the wrench live data tools, the brain deep reasoning.

Dave — the default

Deep reasoning with live data tools, tuned for careful, steady analysis. Dave does the heavy lifting: data pulls, sandbox computations, charts, long multi-step work. 1 credit per answer.

Sam — the second opinion

A second analyst for cross-checks: a different engine taking a second pass over the same question, working from extracted text like Dave. 10 credits per answer. Bring Sam in deliberately, not by default.

Deb — the long-context specialist

A third analyst for very long documents and extended multi-document work: the largest working context of the three, and the analyst with native image vision. 20 credits per answer. Reach for Deb when the material itself is big or the evidence is visual.

What’s the practical difference on uploads?

All three analysts work from the complete available text extracted from a PDF, CSV, TXT, Markdown, or XLSX file. Embedded PDF images and scanned pages are not converted into vision input, including for Deb. Deb can see a separately attached JPEG or PNG, so export or screenshot a visual page and attach that image when the question hangs on a figure or exhibit. The upload picker adjusts: image files attach only when the selected analyst has image vision.

Can I switch mid-chat?

Yes, anytime. The change applies from your next message; a switch during a running answer waits until it finishes. The new analyst sees the full conversation so far.

Stopping and regenerating

During generation the send button becomes a stop button. Stopping halts the run server-side and keeps what was written. On the last answer, regenerate produces a fresh version — earlier versions are kept, with a pager to flip between them. You can also upvote or downvote any answer; downvotes are read. See Report a wrong answer.

Why don’t you tell me which AI models these are?

Dave, Sam, and Deb are Quantesta’s analyst configurations — model, settings, tools, and method together. The components can change as better ones become available. The analysts, their behavior, and their credit prices are the stable interface, and behavior-affecting changes are noted in the changelog.