Castilho Torres IA
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Castilho Torres IA
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Specialist legal and tax intelligence for Brazil

Your legal expertise deserves intelligence that matches it.

Castilho Torres IA brings specialist legal and tax AI, source-grounded research and practice management into one working environment. Built for lawyers, firms, in-house teams and tax professionals who work under Brazilian law and need to decide on solid ground.

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  • Brazilian legal and tax intelligence
  • Multiple AI models, when enabled
  • Source-grounded research
  • Connected workflows

The real problem

The problem isn’t a shortage of AI tools. It’s the distance between an answer and a responsible decision.

A fluent answer doesn’t tell you where it came from, what it assumed or who will act on it. In legal work, those three questions decide whether the output can be used at all.

How it usually goes With Castilho Torres IA
Disconnected chats in generic tools that know nothing about the matter. Specialist analysis by practice area, with client and matter context.
Evidence scattered across PDFs, email threads and court portals. Documents, legislation and case law in the same place as the analysis.
Answers with no traceable origin, hard to check before you sign. Cited sources, stated assumptions and visible uncertainty.
The next step noted somewhere, with no owner and no deadline. A task with an owner, a deadline and a professional review point.

The platform

Three layers, one way of working.

Intelligence to analyze, management to organize and execution to get it done. The layers talk to each other, so what surfaces in an analysis becomes a task, a record and a follow-up without starting over.

One flow
  1. Capture
  2. Understand
  3. Execute
  4. Track
  5. Review

I

Intelligence

Specialist assistants, source-grounded research and assisted review.

  • Legal Pro, Legal-Tax and Fiscal and Accounting assistants
  • Case law research by issue, thesis and court
  • Documents and knowledge bases with their origin
  • Critical audit of AI-assisted answers
See legal-tax intelligence

II

Management

Contacts, clients, matters, tasks and calendar.

  • Legal CRM from first contact to signed engagement
  • Matters with an owner and a status
  • Calendar, open items and meeting transcription
  • Users, roles and dashboards
See legal management

III

Execution

Agents, workflows, automations and work channels.

  • An agent that queries and organizes your operation
  • Follow-up, alert and routing automations
  • Connectors for email, calendar, files and messaging
  • Professional skills for recurring procedures
See agents and automations

Modules, models and integrations depend on each account’s configuration.

The platform in six areas

From the first document to a reviewed decision.

Six areas where specialization changes the outcome. Each one tackles a problem that currently eats hours of expensive professional time.

Legal-tax intelligence

In tax law, assumptions come before conclusions.

Brazil’s consumption tax reform is in transition: the new CBS and IBS run alongside the current taxes, and every client has its own regime, sector and contracts. A generic answer ignores exactly what decides the case.

What the legal-tax assistant helps you do

  1. Examine tax-regime assumptions before concluding
  2. Reconcile documents with the client’s account of events
  3. Find exceptions and special regimes in the legislation
  4. Analyze credits conditionally on the available evidence
  5. Prepare matter-specific review material
  6. Support tax impact analysis of contracts

The analysis reaches the partner with its assumptions, sources and gaps stated. Review gets faster, and nothing is treated as final without the responsible professional’s sign-off.

Explore legal-tax intelligence

Case law research

Find the decision that matters and check it at the source.

Searching several court portals, each with its own filters, takes hours and still leaves doubt about what was missed.

How it works

  1. Search by issue, thesis, tax or dispute
  2. Filter by court, period and panel
  3. Compare decisions side by side
  4. Open the link and check the original decision

Research is aimed at your problem, and checking the official portal remains an explicit step, not an implied promise.

See case law research

Documents and knowledge

Read the whole contract. Flag only what matters.

Conflicts between a contract, its amendments and the client’s story tend to surface late, when they are already expensive.

How it works

  1. Upload authorized contracts, PDFs and reference material
  2. Ask for a comparison across versions and amendments
  3. Get findings with a reference to the page of origin
  4. Route the point to the responsible lawyer for review

Every finding comes with its origin. A professional checks in seconds what used to mean rereading the entire document.

See documents and knowledge

Agents and workflows

Ask your operation.

Knowing what has stalled, with whom and since when means opening spreadsheets, inboxes and separate systems.

How it works

  1. Ask in plain language about matters and tasks
  2. Get the list with owners and deadlines
  3. Approve or adjust the proposed next steps
  4. Track execution in the same environment

Management gets visibility without another meeting, and no action on data happens without permission and approval.

See agents and automations

CRM and legal management

From first contact to delivery, with an owner at every stage.

Opportunities and matters live in chats and spreadsheets, and the full portfolio only appears at month-end.

How it works

  1. Log the contact and qualify the opportunity
  2. Track proposal and negotiation
  3. Convert it into a matter with an owner
  4. Plan the team’s tasks and appointments

Partners see the portfolio and the team’s capacity in the same place where the technical work happens.

See legal management

Intelligence Reports

What changed. Why it matters. What to do.

Tracking legislation, case law and sector news for every client does not fit anyone’s calendar.

How it works

  1. Choose a sector, issue, thesis or tax
  2. Search public sources for developments, with date and origin
  3. Receive an executive summary with potential impact
  4. Turn points of attention into next steps

Your team reaches the client before the question does, with source and date for every item. Continuous monitoring is enabled by configuration.

See Intelligence Reports

End to end

One request, from first message to next action.

Follow a request through the platform. The client, documents and dates below are illustrative.

01

The request arrives

A client emails to ask whether CBS and IBS credits can be taken on freight costs during the transition.

Illustrative example

  • Channel: client email
  • Client: inputs distributor
  • Received: Monday, 9:12
02

The matter gets context

The request is logged with client, practice area and owner, and the matter documents are attached to it.

Illustrative example

  • Area: tax
  • Owner: tax team
  • Documents: 3 contracts, 12 invoices
03

Documents are reviewed

The document review assistant compares contracts and invoices and flags two contracts that do not say who bears the freight.

Illustrative example

  • 2 undefined points
  • Origin: contracts, p. 2 and p. 5
04

Research gathers the basis

Applicable legislation and relevant precedents are collected with the source of each item, ready to be checked.

Illustrative example

  • LC 214/2025
  • Precedents by issue, with official link
05

A recommendation with uncertainty

The analysis arrives with stated assumptions, a preliminary conclusion and the two uncertainties that still depend on evidence.

Illustrative example

  • Confidence: moderate
  • Stated uncertainties: 2
06

The owner reviews and approves

The partner reviews the analysis, edits the wording and approves the next step. The decision is theirs and is recorded in the history.

Illustrative example

  • Review: responsible partner
  • Status: approved with edits
07

The next action happens

A task to request the missing contracts is created with a deadline, and the client receives a reviewed answer.

Illustrative example

  • Task: request contracts
  • Due: Thursday

Illustrative workflow. Channels, integrations and automations depend on account configuration.

Who it is for

Built for the people who answer for the decision.

  • Independent lawyers

    You handle research, drafting, client work and admin all at once.

    Team-level capacity without losing control of any matter.

  • Law firms

    Quality varies between lawyers, and the portfolio is spread across tools.

    Consistent analysis standards and one view of clients and matters.

  • In-house counsel

    The business wants fast answers; legal needs judgment and a record.

    Triage, contract review and answers with a traceable basis.

  • Businesses

    Tax and regulatory change hits pricing, contracts and cash before it makes the news.

    Executive reports with sources and next steps for leadership.

  • Tax and accounting

    Tax reform multiplies assumptions, filings and checks.

    Analysis conditioned on evidence, with material ready for review.

Technology

Specialized intelligence without dependence on a single model.

Castilho Torres IA is built on the aiBlue Core architecture. For the people using it, that means a platform that picks the right specialist and model for each task, sends them only what they need and structures the answer so it can be checked.

The goal is less unnecessary processing per task, with quality and governance intact. Actual savings vary by model, task and volume, and should only be claimed once measured in a comparative benchmark.

See technology and governance
Intelligent routing
Each task goes to the most suitable agent and model.
Targeted context
The model receives only the instructions and data relevant to the request.
Selective retrieval
The passages that matter from your library, not the whole library.
Compact architecture
Less redundancy in instructions and in the analysis flow.

Origin

A platform born close to legal practice.

The Castilho Torres name comes from legal practice. Castilho Torres Sociedade de Advogados, based in Penápolis, São Paulo state, brings more than 40 years of experience in employment, social security, tax and corporate law.

In August 2026, the firm’s partner and CEO, Dr. Sidney Torres, was named Tax Lawyer of the Year 2026 (Tributarista do Ano) by the Ordem dos Economistas do Brasil.

Castilho Torres IA is the technology platform that brings that standard of rigor into other professionals’ daily work, built on the aiBlue Core architecture.

One distinction we want to keep clear: the firm’s track record belongs to its legal practice. It is not a performance metric for the software. The platform is something you judge for yourself, in the trial.

Read about origin and responsibilities
40+
years of experience at the law firm
4
practice areas: employment, social security, tax and corporate
2026
Tax Lawyer of the Year for Dr. Sidney Torres, Ordem dos Economistas do Brasil
Source: the law firm’s institutional website

7-day trial

Explore it for seven days.

The best way to judge a professional platform is with the questions from your own working week.

  1. 1
    Create your account

    Sign up directly in the platform environment.

  2. 2
    Enter the application

    Sign in with your credentials from any browser.

  3. 3
    Explore the enabled workflows

    Try specialist assistants, research and management in whatever is enabled for the trial.

  4. 4
    Assess the fit

    See how the platform fits your team’s routine before you decide.

Start your 7-day trial

Trial conditions, such as included modules and what happens after seven days, are shown during sign-up.

FAQ

What people ask before they start.

See all questions
What is Castilho Torres IA?

It is a software platform that brings together, in one environment, AI specialized in Brazilian law and taxation, source-grounded research and the management of legal work: clients, matters, tasks, agents and automations. The aim is to take a question all the way to a concrete next step, with professional review along the way.

Who is it for?

Independent lawyers, law firms, in-house legal departments and tax and accounting teams working under Brazilian law. It also serves executives who need clear reporting on legal and tax changes that affect the business in Brazil.

How is it different from a general-purpose AI assistant?

In three ways. Specialization: assistants with their own domain, analysis protocol and sources for each practice area. Grounding: answers show where information came from, state their assumptions and flag uncertainty. Operations: the analysis becomes a matter, a task and a follow-up in the same environment instead of staying trapped in a chat.

Do I need to replace the systems I already use?

Not necessarily. The platform can be your main environment for intelligence and management, or it can sit alongside your current systems. Integrations with email, calendar, files, messaging and APIs are possible and assessed for each rollout.

Where do research sources come from?

From three places, depending on configuration: documents you upload, indexed knowledge bases (such as legislation) and public sources such as court portals and official publications when integrated research is enabled. The quality of the grounding depends on what has actually been indexed, and court decisions should always be checked on the official court portal.

Which AI models are available?

The platform gives access to model families such as GPT (OpenAI), Claude (Anthropic), Gemini (Google) and DeepSeek, among others. The models available in each account depend on the license, active APIs and installation settings. Naming these providers does not imply partnership or endorsement.

How does the 7-day trial work?

You create an account through the Start your 7-day trial button, sign in to the application and explore the workflows enabled for the trial. Trial conditions, such as included modules and what happens after seven days, are shown during sign-up.

How is confidential information handled?

Data handling follows the platform’s terms of use and privacy policy, which are in final legal review and will be published on this site. Before uploading sensitive documents, check your account’s access permissions and talk to the team about your firm’s or company’s specific requirements, including under the LGPD (Brazil’s data protection law) and professional secrecy rules.

Does the platform replace review by a lawyer or accountant?

No. The platform supports the analysis, organizes evidence and prepares review material, but the conclusion and professional responsibility remain with the qualified professional. That is why answers separate evidence from inference and state their uncertainty.

Does subscribing create a relationship with the law firm?

No. Castilho Torres IA is software. A subscription does not create an attorney-client relationship with Castilho Torres Sociedade de Advogados or any lawyer, and using the platform is not legal advice. The firm’s legal services are engaged directly with the firm under a separate agreement.

The next generation of your operation begins with a decision.

Start with the seven-day trial, or talk to the team about a rollout designed around your structure.

Start your 7-day trial Talk to our team