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Company profile

Isaacus

Building legal superintelligence with effective, efficient, and scalable AI models.

isaacus.comProfile compiled July 20263 source pages read
Category
Legal AI
Headquarters
Melbourne, Victoria
Sells to
Mixed
Business model
Usage-based API, Services & consulting
Deployment
API, Cloud / SaaS, Self-hosted
Pricing
API credits · free tier
Builds own models
Yes
Modalities
Text

Isaacus is an AI research company focused on building legal superintelligence. They develop effective, efficient, and scalable foundational legal AI models, leading the pack in this domain. Their products include state-of-the-art information retrieval, classification, extraction, and enrichment models designed to supercharge legal AI applications. Isaacus also maintains popular open-source datasets and libraries. They offer their models and APIs via an online platform, AWS Marketplace, or self-hosted deployments, catering to legal tech companies and law firms globally. The company is based in Melbourne, Australia, and Riyadh, Saudi Arabia, serving clients internationally.

  • Kanon 2 RerankerA flagship legal information retrieval model, ranking first on Legal RAG Bench and Massive Legal Embedding Benchmark (MLEB).
  • Kanon 2A flagship legal information retrieval model, ranking first on Legal RAG Bench and Massive Legal Embedding Benchmark (MLEB).
  • Hierarchical Graphitization ModelThe first hierarchical graphitization model capable of transforming unstructured documents of any length into rich, highly structured knowledge graphs with sub-second latency. Also referred to as 'Enrichment'.
  • semchunkThe world's most popular semantic chunking algorithm.
  • Retrieval ModelsState-of-the-art legal retrieval models that turn complex legal queries into highly relevant search results.
  • Blackstone Graph serviceA forthcoming proprietary repository of laws, decisions, contracts, and other legal documents from around the world.
  • Embedding ModelA state-of-the-art model for embedding documents.
  • Effective legal AI models
  • Efficient legal AI models
  • Scalable legal AI models
  • State-of-the-art information retrieval models
  • Classification models
  • Extraction models
  • Enrichment models
  • Proprietary repository of legal documents (Blackstone Graph)
  • Online platform access for models and APIs
  • AWS Marketplace deployment option
  • Self-hosted deployment options (private, air-gapped containers, AWS tenancy, own hardware)
  • Continuous availability
  • Minimal latency
  • Zero permanent data retention for online platform
  • SOC, ISO, and IRAP compliance for private deployments
  • Open-source datasets and libraries (Massive Legal Embedding Benchmark (MLEB), Legal RAG Bench, Open Australian Legal Corpus, semchunk)
  • Pulling dates from contracts
  • Searching thousands of cases for critical citations
  • Transforming complex legal queries into highly relevant search results
  • Transforming unstructured documents into rich, highly structured knowledge graphs
  • Embedding documents
  • Building legal AI solutions

Isaacus is an AI research company building legal superintelligence. They develop foundational legal AI models for information retrieval, classification, extraction, and enrichment. Their flagship models, Kanon 2 Reranker and , are noted for accuracy in legal information retrieval. They also created semchunk, a popular semantic chunking algorithm. They offer models for turning complex legal queries into relevant search results and transforming unstructured documents into structured knowledge graphs. They also maintain popular open-source datasets and libraries.

Tech named: AI, Legal AI, Legal technology, Natural language processing, Deep learning, Machine learning, Legal tech, Kanon 2 Reranker, Legal RAG Bench, Massive Legal Embedding Benchmark (MLEB), hierarchical graphitization model, semchunk, retrieval models, enrichment models, Blackstone Graph service, embedding model

  • Legal tech
  • Law firms
  • Enterprises
  • Governments
  • Leading the pack in foundational legal AI
  • Kanon 2 Reranker and Kanon 2 models are the most accurate legal information retrieval models in the world
  • First ever hierarchical graphitization model
  • Creators of semchunk, the world's most popular semantic chunking algorithm
  • 26% better accuracy than general-purpose analogs
  • 40B tokens served per month
  • Solving time-consuming problems legal tech professionals face
  • Flexible deployment options (online platform, AWS Marketplace, self-hosted)
  • Commitment to open research and open-source contributions
  • Team combines advanced AI/statistics knowledge with deep legal expertise (35 years industry experience)
  • Internationally recognized legal AI researcher as founder & CEO

Aura Ventures, Galileo Ventures

From the AI funding tracker — rounds as reported by the linked publications.

This profile was compiled from Isaacus's own public pages in July 2026 and reflects what the company states about itself — not an endorsement or an independent audit of those claims. Facts are extracted with AI and filtered by an automated check that drops any named product, customer or certification missing from the source pages. Full method. Something out of date? Tell us.