Case study · Jurors.com
We built Jurors.com. Trial lawyers pick the county where a case will be tried, seat twelve jurors from its population, hand them the case and watch them deliberate. Every juror is their own AI. Every word they say is signed.
Inside a mock trial
Built from the county up
Every juror is built from the county’s Census estimates: age, education, the work people do, who owns and who rents. Their politics match how the county actually voted in 2024. Before they ever see a case, each one is interviewed about big companies, police and lawsuits, so they walk into the jury room with their attitudes already in place.
AI Juror No. 008 · Cook County, Illinois
Moving helper
Today“I should call Yolanda, see if she needs help with anything. She mentioned needing to move that old dresser last week.”
Inside every juror
What we built
Ask what you would ask in voir dire. See where they lean and what is on their mind today.
Police reports, depositions, expert reports, even scans. The lawyer approves every page the jury hears.
Before anyone speaks, each juror thinks it over. You see what they would never say out loud.
Liability claim by claim, damages line by line, and a settlement range against the demand and the policy limit.
For criminal trials: every element proved or not, lesser-included offenses, and who holds out. For the defense and for prosecutors.
Every juror in the county pool hears the case and votes. 10,000 juries are seated from those votes, next to the jury that deliberated.
Names, companies and numbers are replaced on the lawyer’s own computer before anything is sent. The key back stays with them.
Jurors fine-tuned on a firm’s own verdicts and focus groups, tested on past trials they never saw, and approved by an attorney with a hardware key before they go live.
Run it on our servers, a firm’s own server, or with no internet at all. Models and county pools arrive on a drive.
Every answer carries a receipt
Each juror statement, private thought and vote comes with a receipt naming the exact model, its weights, the prompt and the output, by fingerprint. It is signed twice, once with a post-quantum signature, and anyone can check it in the browser.
We tested it: change a single character of a juror’s answer, and the receipt fails with “altered or forged”. Any answer can be run again and proven to match, word for word, and every step goes into a chained, tamper-evident log.
Under the hood
About 8,700 jurors, four agents each, every one loaded, signed and served by Optima Prime. Re-signed every morning with what they now know.
Match a juror questionnaire or a venire profile. Set age, work, money, views and life story, and they join the county pool as a full juror: interview, portrait, memories, voice and a life in the county.
The case never goes to a public cloud AI. Lawyers can also anonymize a case on their own computer before anything is sent.
We tested nine open-weight models on the jurors’ real work. The one we picked was faster, and agreed more often with the votes real juries cast than the larger one it replaced.
A small draft model proposes the next few words and the main model checks them. Jurors write about 1.7 times faster, with identical output.
Deliberation runs on the machine that reads prompts fastest; bulk votes and the daily simulations run on another. Adding a machine is one script and one line of configuration.
Why it matters
Legal, insurance, health, government
Every answer with a signed receipt, on hardware you control, from one machine to a fleet.