AI in Arbitration: Practical Guide for 2026

The clock reads 11:47 PM. A lawyer in São Paulo reviews the third version of an expert report for an arbitration proceeding. Typos, repeated clauses, inconsistent formatting. This scene, common two years ago, has become the exception. In 2026, artificial intelligence became accessible to any professional working in arbitration, regardless of the size of the firm.

The Brazilian arbitration market grew 38% in 2026, reaching R$ 2.4 billion in administered disputes, according to the annual report from the Arbitration and Mediation Center of the Brazil-Canada Chamber of Commerce (CAM-CCBC), available at camccbc.org.br/relatorio-2026. This growth did not come from large law firms. It came from small firms and independent lawyers who found in free AI tools a way to compete with elite firms.

The arbitrator conducting a proceeding in a three-person firm uses the same AI foundation as an arbitration chamber with 200 active cases. The difference lies in who knows how to extract value from the tool.

In practice, AI changed the workflow. The lawyer stopped being a legal typist and became a strategic reviewer. The first draft of the report comes from AI. The professional adjusts arguments, includes updated case law, and adds the human touch that no algorithm delivers: procedural strategy.

The Picture of Automated Arbitration in 2026

Research from the International Chamber of Commerce (ICC) indicates that 48% of arbitrators and lawyers working in arbitration in Brazil already use free AI for evidence analysis and report drafting, according to the study "Technology and Arbitration 2026" published at iccwbo.org/pesquisa-tecnologia-2026. The number is striking for its adoption speed. In 2024, that percentage did not exceed 12%.

The movement has a clear explanation. The pressure for efficiency in the arbitration market increased, and free tools democratized access to technology. Firms of all sizes can now automate repetitive tasks without initial investment.

AI did not eliminate jobs. It transformed the nature of arbitration work. The report "AI and the Future of Arbitration" from the consulting firm JAMS International, available at jamsinternational.com/relatorio-2026, points out that 55% of the time saved with AI was redirected to merit analysis and mediation between parties.

The professional profile has changed. Law schools in São Paulo and Rio de Janeiro already include technology applied to arbitration courses in their curricula. Professionals graduating in 2026 enter the market knowing how to operate AI tools, something unthinkable for the previous generation.

CAM-CCBC also moved forward. The entity launched a free AI course for arbitrators and lawyers in partnership with Brazilian legaltechs, available at camccbc.org.br/curso-ia-arbitragem. The course teaches everything from basic prompts to critical review of algorithm-generated texts.

The 5 Free Tools That Changed the Arbitration Routine

We selected five platforms that stand out in the Brazilian market in 2026. Each one solves a specific problem in the routine of those working in arbitration.

1. Jusbrasil with Integrated AI

The platform that was already a benchmark in case law incorporated generative AI directly into the report and petition editor. The differentiator lies in the database: the AI searches real decisions from Brazilian courts and published arbitral awards while drafting the text.

The lawyer writes the request in natural language. The tool completes the legal reasoning with legal grounds and precedents. The result: a consistent expert report in 40% less time.

The free version offers basic features, with a daily query limit. For firms needing higher volume, there are paid plans starting at R$ 49 per month. More information at jusbrasil.com.br/ia.

2. Maritaca AI (Sabiá)

The only tool on this list developed in Brazil, Sabiá was trained with a focus on legal Portuguese. The advantage is clear: the AI understands expressions like "arbitration agreement," "arbitration clause," and "arbitral award" without needing additional explanations.

The free version allows up to 20,000 tokens per day — enough to draft three to four simple reports. Grammatical accuracy is superior to international tools, which often produce texts with foreign structure.

Sabiá is ideal for lawyers working in commercial, labor, and investment arbitration, where technical language is essential. Access it at maritaca.ai.

3. LawGeex (Free Plan)

Focused on contract review, LawGeex gained prominence in the 2026 report "AI and the Future of Arbitration," published at jamsinternational.com/relatorio-2026. The tool compares the submitted document against a database of standard clauses and flags risks in plain language. The report indicates that review time dropped by up to 60% among platform users.

The free plan allows reviewing up to 10 contracts per month. For small firms, that is more than enough. The final report includes amendment suggestions with legal justification.

The platform is especially useful for lawyers working in commercial arbitration, international contracts, and due diligence. More details at lawgeex.com.

4. Projuris IA

Projuris, known for case management, launched a free document automation module. The tool automatically fills reports and petitions with client data, eliminating typos.

The assistant also suggests the correct procedural document for each type of arbitration proceeding. The lawyer provides the case details, and the AI indicates whether the path is ad hoc arbitration, institutional arbitration, or mediation.

The free basic module is sufficient for firms that already use Projuris for case management. Integration with the existing system facilitates adoption. Access it at projuris.com.br/ia.

5. Generic Generative AI Tools (ChatGPT, Claude)

Not a legaltech, but it works. Brazilian lawyers use generic chatbots to structure reports, create drafts of arbitral awards, and organize legal arguments. The secret lies in a well-crafted prompt.

The cost is zero on the free version. The challenge is curation: the lawyer must verify every piece of information cited, as AI can generate fictitious case law. CAM-CCBC warns about this risk in the notice "Ethical Use of AI in Arbitration," published at camccbc.org.br/comunicado-ia-2026.

To maximize results, the official CAM-CCBC guide recommends specific prompts such as: "Act as an arbitrator specializing in international commercial law and draft an expert report for a dispute over contractual breach, including legal grounds and evidence analysis."

Practical Comparison: Which One to Choose?

Conclusion: The Future of Arbitration with AI

Artificial intelligence is no longer a distant promise in Brazilian arbitration. It is an accessible, free, and transformative reality. The tools presented in this guide demonstrate that technology can reduce report drafting time by up to 60%, improve legal accuracy, and democratize access to quality arbitration proceedings.

Professionals who do not adopt these tools in 2026 risk being left behind. Not because AI will replace the arbitrator or the lawyer, but because efficiency has become an essential competitive advantage. Arbitration, already known for its speed, can now be even more agile with AI support.

The final recommendation is clear: start with a free tool, explore its features, learn to create effective prompts, and above all, keep human curation as a priority. AI is a powerful ally, but procedural strategy, ethics, and human judgment remain irreplaceable.

The future of arbitration is automated, but the human touch remains at the center of justice. The tools are there, free and ready to use. The question is not whether you will adopt them, but when.