Lavern
Lavern
Lavern is an open-source multi-agent legal AI system for document-based legal work. Public project materials describe 67 specialist agents, evidence-backed debate, human gates, a ten-pass verification loop, configurable agent teams, a knowledge base, document review and drafting outputs, and local/frontier/hybrid execution modes. Lavern is described by its publisher as a working demo and architecture rather than a finished production legal service.
Listing detail
- Categories
- Drafting & Document Automation, Contracts, Legal Knowledge Management
- Type
- Platform, API / Dev Tool, Open Source, Self-Hosted
- Deployment
- Self-hosted; Local/on-device; Frontier-model API; Hybrid local/frontier
- Country (HQ)
- Finland
- Information basis
- Public vendor/project information
Pricing
- Pricing model
- Open Source; Usage Based
- Pricing detail
- Open-source software; public materials state the software is free and Apache 2.0 licensed. Running costs depend on selected LLM provider/API use; local mode is described as $0.
Security & trust
- Notes
- Lavern is published as an open-source working demo / architecture rather than a finished production service. Public materials describe local mode, frontier model use via Anthropic or Mistral, and hybrid mode running a local pass first and then dispatching only flagged questions to a frontier model. Privacy/terms materials state hosted-service documents may be processed by subprocessors; users should consider privilege, privacy and qualified legal review before relying on outputs.
- Trust page
- Privacy policy ↗
Integrations
- Integrations
- API available, Anthropic; Mistral; Ollama/local models. Local/frontier/hybrid execution modes described
Jurisdiction
- Statement
- Jurisdiction-neutral / operator-configured. Public materials state the system follows the user's jurisdiction, but no external legal database or specific legal content coverage was found.
- Notes
- Lavern appears jurisdiction-neutral for document-based legal AI workflows. Public materials refer to jurisdictional specialists and user-selected jurisdiction, but reviewed materials do not establish external legal research database coverage for any jurisdiction.
Notes
Lavern is described by its publisher as a working demo and architecture, not a finished production legal service. The site states Lavern is not a law firm and is not legal advice. Outputs should be reviewed by qualified legal professionals.
Listing based on public vendor and project information. The archive does not verify or certify any tool. Confirm features, pricing, security and jurisdiction coverage directly with the vendor.