Ivo Released Open-Source AI Model for Contract Review
The new Sage model aims to improve legal documentation efficiency for large enterprises.
Updated on Oct. 1, 2026 in Artificial Intelligence
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Ivo has launched its open-source Sage model, which was post-trained on DeepSeek V4 Flash in collaboration with River AI. Designed to streamline legal work, the model reached a 91 percent score on the Legal Agent Benchmark Contracts.
Why it matters
By providing this open-source tool, Ivo seeks to increase transparency in legal technology and transform enterprise contracts into actionable intelligence. The release aims to standardize how organizations handle complex documentation and negotiation processes.
The Sage model operates on the Ivo-micro1 Contract Bench, which evaluates effectiveness across five dimensions. It correctly accepts 82 percent of counterparty changes and follows playbook standard position criteria 51 percent of the time.
The players
Ivo
This San Francisco-based firm specializes in building artificial intelligence tools for the legal sector.
River AI
This technology company partnered with Ivo to develop the open-source Sage model.
The details
Developed with River AI, the model incorporates data generated by attorneys to handle contract review tasks. While it excels at identifying counterparty changes, the system currently meets attorney escalation criteria at a rate of 23 percent.
Timeline
October 1, 2026: Ivo officially released Sage and hosted the Inscribe conference.
Coming weeks: The company plans to publish a full set of benchmark results.
The Tech Race
Ivo Sage builds upon the capabilities of the DeepSeek V4 Flash model to address specialized legal workflows. This development underscores the broader shift toward domain-specific fine-tuning of large language models to automate professional services.
Fortune 500 legal teams can now utilize Ivo Collaborate to automate aspects of their contract review processes. Users should note that while the model handles counterparty changes effectively, its performance in generating new contract points remains limited.
The takeaway
Legal teams should approach AI-assisted contract review as a tool for efficiency rather than a complete replacement for human oversight. Verification of new points and complex escalations remains essential to ensure accuracy within enterprise playbooks.
Further reading
Learn more about the latest innovations in Artificial Intelligence.
Source note: This article includes information reported by The Manila times.
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