MexicoPublic sector2025 – ongoing

Poder Judicial of the State of Querétaro

SonIA: in-house generative AI for drafting court orders

Querétaro's courts began issuing rulings drafted with an in-house AI on their own servers, claiming it could speed work by up to 60%

In progressCompany's own claim

Problem

Court staff in Querétaro grew about 2% in ten years while workload rose about 12%. The 83 courts receive up to 700,000 filings a year.

Approach

The judiciary spent about 17 million pesos on its own server and trained SonIA for six months on commercial and family law. External cloud services are barred for court files. In April 2026 it issued its first no-fault divorce and first commercial-case ruling drafted with the system. The court announced that POLARIS Demanda Digital would begin accepting digital filings on 4 May 2026. Judges must verify every output and stay responsible for the decision.

Results

up to 60%expected speed-up of court processes, according to the court; calculation method not disclosedCompany's own claim[1]

1 order per 1.5 minutesSonIA's output versus about 15 orders a day per clerk, per the court presidentCompany's own claim[2]

~17 million pesosinvestment in the court's own server, per the court presidentCompany's own claim[2]

Takeaway

The court kept AI drafting on its own servers and required judges to verify the results. Its speed claims were still based on an early rollout with only two rulings issued.

Sources

Boletín de prensa sobre las primeras resoluciones con asistencia de inteligencia artificial
Poder Judicial del Estado de Querétaro28 Apr 2026Regulator, audit or court document
Es oficial en Querétaro: la IA toma un lugar impensado en el Poder Judicial
ADN409 May 2026News article

Source summaries

[1]Poder Judicial del Estado de Querétaro28 Apr 2026

The court announced its first divorce and commercial rulings drafted with its own AI, SonIA, on institutional servers. It said processes could speed up by as much as 60% and that judges verify every action. It also announced the digital filing tool POLARIS Demanda Digital from 4 May 2026.

[2]ADN409 May 2026

Court president Braulio Guerra Urbiola told ADN40 that SonIA runs on private infrastructure that cost about 17 million pesos, was trained for six months, and has handled two rulings in two courts. He also gave the workload figures and compared SonIA taking 1.5 minutes per order with a clerk producing about 15 orders a day.

Full details are in the original sources.

Added 25 Oct 2026 · Updated 25 Oct 2026