Skip to content
OQuark

ChatADV

by Décima Tecnologia

Visit official site

Best for

Lawyers who want to hand case analysis, case-law research and pleading drafting to AI agents.

Verified on October 22, 2026 · Official source

About

Brazilian platform with a team of AI agents for lawyers that analyzes cases, researches case law with the source of each decision, drafts pleadings, opinions and contracts and delivers the text ready for Word.

Why it ranks #3

It handles the main legal tasks in Portuguese, with case law cited by court and number and a published price, but it has no permanent free plan (only a free trial of unstated length) and its paid plan costs more than those of the tools above.

Criteria used for AI for lawyers

Usefulness for real legal work (case-law and statute research, drafting and reviewing filings and contracts, document analysis), coverage of Brazilian law and Portuguese support, pricing transparency and a free plan or trial.

Pricing

  • No free plan

Paid plans from R$ 277/month

Verified on October 22, 2026 · Official source

Prices change often; check the official site.

Portuguese support?

Yes

Verified on October 22, 2026 · Official source

Pros / Cons

Pros

  • Case law cited by court and number, with anything not from the database flagged
  • More than 300 ready-made skills by area of law
  • Editable pleadings, opinions and contracts downloadable to Word

Verified on October 22, 2026 · Official source

Cons

  • No permanent free plan; the free trial's length isn't stated
  • List price of R$277/month for the Premium plan (with a temporary campaign discount)

Verified on October 22, 2026 · Official source

Compare ChatADV with

Alternatives in AI for lawyers

  1. #1Jus IAJusbrasil
  2. #2Jurídico AIJurídico AI
  3. #4LexterJuristech Inteligência Artificial
  4. #5TuriviusTurivius
  5. #6CoCounselThomson Reuters
  6. #7SpellbookSpellbook

Follow the AI rankings and launches

One e-mail a week with the rankings that changed and the AI launches that matter. Free, unsubscribe anytime.

See how we handle your data in our Privacy Policy.

What's in the newsletter