Conversational case law research
Research Brazilian case law in natural language, find relevant decisions, and deepen the analysis through conversation. Every answer remains connected to the sources that support it.
PRODUCT CAPABILITIES
AI assisted legal document drafting
Start from a blank page or the context of a connected case to organize arguments, surface risks and alternatives, and structure a first draft.
SHARED LAYER
Provenance and verification
Answers, excerpts, and recommendations stay connected to the sources that support them. Professionals can review the context and decide what to use.
IN EXPLORATION
Applied jurimetrics
Quantitative analysis of decisions reveals patterns by topic, court, period, and legal basis without turning trends into predictions.
Case data analysis
Organize documents, events, amounts, and case activity to surface relationships, gaps, and points that deserve attention.
AI capabilities integrated into Astrea.
IN ASTREA
In Astrea, lawyers research case law through conversation, receive answers supported by relevant decisions, and refine their scope without leaving the platform. Using the context of a case, they can also begin drafting a legal document with AI assistance.
Argonautas is responsible for the AI experiences currently available in Astrea and built the AI engineering that powers them.
- Conversational case law research
- AI assisted legal document drafting
- 45.89K+Conversations started
- 36.7K+Headnotes copied
- 9,498+Analyses generated
Usage data from Astrea's case law module.
AI engineering for legal products.
We combine models, information retrieval, infrastructure, and design to build legal experiences that work inside existing platforms. Professionals inspect supporting material, review suggestions, and decide what to use.
Models, information retrieval, legal knowledge, and product engineering
AI capabilities integrated into the product.
DIRECTION
Connected legal intelligence.
We are exploring how MCP, APIs, and integrations can bring legal research, analysis, and assistance into a partner's workflow.
The experience should work inside the product and preserve human review and control.
WHO WE ARE
The people behind Argonautas
Argonautas brings together leaders who helped build one of Brazil's leading legal software companies. Antonio Gerassi Neto and Sonia Tuyama founded Aurum; Celso Nunes and Milton Bittencourt were partners in the company.
Today, that experience combines with the work of AI engineers, designers, lawyers, and customer success specialists to develop AI capabilities integrated into legal products.
Antonio Gerassi Neto
Co-founder / CEO
Celso Nunes
Co-founder / CFO
Sonia Tuyama
Co-founder / CPO
Milton Bittencourt
Co-founder / CTO
- AI engineeringModels, information retrieval, and software engineering.
- LawKnowledge of legal work applied to the product.
- DesignExperiences built inside existing platforms.
- Customer successReal problems turned into useful capabilities.
AI IN YOUR PRODUCT
Let's talk about AI in your product.
Tell us what you want to build. We will get in touch to discuss capabilities, integration, and next steps.