Summary
LexisNexis rolled out the next generation of its Protégé General AI, allowing legal professionals to toggle between GPT-5, Claude Sonnet 4, and other models within a secure environment. The platform features a new agentic infrastructure enabling AI agents to collaborate on complex workflows.
LexisNexis has unveiled what it calls the "next generation" of its Protégé General AI platform, expanding capabilities to unify authoritative legal content, customer documents, and open web insights within a single secure AI workflow environment.
The update follows Protégé General AI's August 2025 customer preview and October 2025 commercial release.
Key features:
- **Multi-Model Access**: Users can toggle between legal-specific and general-purpose AI models including GPT-5, Claude Sonnet 4, GPT-4o, and OpenAI o3—all within the secure LexisNexis environment
- **Agentic Infrastructure**: New backend enabling AI agents to collaborate on complex legal workflows
- **Integrated Agents**:
- Legal Research Agent: Generates answers based on relevant legal authorities
- Web Search Agent: Provides open web insights
- Customer Document Research Agent: Analyzes customers' own documents
Evolution of the platform:
- **August 2024**: Protégé AI assistant unveiled (same day as Thomson Reuters CoCounsel 2.0)
- **January 2025**: Protégé made generally available with autonomous task completion
- **August 2025**: Protégé General AI launched in customer preview with ~200 law firms, corporate legal departments, and law schools
- **December 2025**: Next-generation update with expanded capabilities
AI adoption statistics from LexisNexis:
- Over 69% of legal professionals are already using or planning to use generative AI tools
- Confidence in AI surged from 75% (2023) to 90% (2025)
- Number of lawyers using generative AI monthly more than doubled in the past six months
The multi-model approach reflects a growing industry trend away from single-vendor AI dependencies. Legal professionals can now choose the best model for specific tasks while maintaining data security and compliance.