Best AI for Legal Documents
Which AI drafts the best legal documents? Ranked across contract review, terms of service, and legal correspondence with nuanced reasoning.
How Legal Documents rankings are computed
Rankings are based on 20 models tested across 3 legal documents challenges. Each model is scored using a five-signal composite: 30% RIVAL Index (with product-line inheritance for new models), 20% task coverage, 20% challenge-scoped duel performance, 15% model recency, and 15% model tier. Models are deduplicated by product line so only the newest version per model family appears. Gemini 3.1 Pro Preview currently leads with a score of 84.0/100. All ranking data is part of RIVAL's open dataset of 21,000+ human preference votes.
Head-to-Head
Full Rankings
20 models
What is the best AI for legal documents?
RIVAL ranks AI models for legal documents using a five-signal composite algorithm across 3 challenges: 30% RIVAL Index, 20% task coverage, 20% challenge duels, 15% recency, and 15% model tier. Newer models inherit RIVAL scores from predecessors within their product line, and only the newest version per model family is shown. As of the latest refresh, Gemini 3.1 Pro Preview leads with a composite score of 84.0/100.
How are AI models ranked for legal documents on RIVAL?
Each model is scored with a multi-signal composite: 30% RIVAL Index, 20% task coverage, 20% challenge duels, 15% recency, and 15% model tier, plus a small bonus for major AI providers. Rankings are based on 20 models tested across 3 legal documents challenges. Models are deduplicated by product line (e.g., only the latest GLM or GPT version appears). All duel votes are blind: voters see responses without knowing which model produced them.
Can I compare AI models for legal documents?
Yes. Each model in the ranking links to its profile page, and you can compare any two models side-by-side on RIVAL's Compare page to see their actual responses to legal documents challenges.
How often are the legal documents rankings updated?
Rankings are refreshed every few hours. They incorporate the latest RIVAL Index scores from community duels, model recency, and any new model responses added to the platform. All ranking data is part of RIVAL's open dataset.