{"slug":"harvey","name":"Harvey","domain":"harvey.ai","verdict":"As of 2026-07-15, ChatGPT, Claude, Gemini, Grok collectively rank Harvey #2 of 8 for ai legal assistant (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/harvey (modelsagree.com, CC BY 4.0).","best_rank":2,"categories":2,"brief":{"category":"best-ai-legal-assistant","title":"Best AI legal assistant","rank":2,"of":8,"top":"CoCounsel","day":"2026-07-17","why":[{"t":"Deep custom agentic workflows","m":["Claude","Grok","ChatGPT","Gemini"],"q":"Deep custom workflows, agentic capabilities for complex diligence, contract analysis, and regulatory work"},{"t":"Complex drafting and document review","m":["Claude","Grok","ChatGPT"],"q":"complex drafting, large-scale document review, internal knowledge, reusable workflows"},{"t":"Strong enterprise legal adoption","m":["Claude","Grok","ChatGPT"],"q":"strong adoption and proven value in AmLaw 100 and enterprise in-house settings"},{"t":"Tailored proprietary document workflows","m":["Gemini","Claude","ChatGPT"],"q":"tailored, playbook-driven workflows directly on top of their proprietary internal document systems"}],"gap":[{"t":"Authoritative Westlaw grounding","m":["ChatGPT","Gemini","Claude","Grok"],"q":"grounded in Westlaw and Practical Law so citations check out"},{"t":"KeyCite validation","m":["Grok"],"q":"KeyCite validation"},{"t":"Minimal hallucinations","m":["Gemini"],"q":"highly reliable, citation-backed legal research, deposition prep, and document analysis with minimal hallucinations"}],"fix":[{"t":"Enterprise-only pricing and economics","m":["ChatGPT","Claude","Gemini","Grok"],"q":"Enterprise-only economics and onboarding"},{"t":"Unviable for solos and small firms","m":["ChatGPT","Claude","Gemini","Grok"],"q":"making it unviable for mid-market and solo practitioners"},{"t":"High implementation and onboarding demands","m":["ChatGPT","Claude","Gemini"],"q":"Enterprise pricing, implementation demands, and less inherently authoritative research coverage"}]},"entries":[{"slug":"best-ai-legal-assistant","title":"Best AI legal assistant","rank":2,"of":8,"score":16,"appearances":4,"modelRanks":{"ChatGPT":3,"Claude":1,"Gemini":3,"Grok":1},"reason":"The broadest and deepest legal AI platform in real deployment — agentic workflows for transactional review, diligence, litigation drafting, and knowledge search over firm precedent, with a Word add-in and multi-model backend; it has the widest adoption across AmLaw 100 firms and large in-house departments, and its LexisNexis partnership patched its old research-grounding gap. Rank assumes an enterprise buyer who can fund a platform rollout.","reasons":[{"model":"Claude","reason":"The broadest and deepest legal AI platform in real deployment — agentic workflows for transactional review, diligence, litigation drafting, and knowledge search over firm precedent, with a Word add-in and multi-model backend; it has the widest adoption across AmLaw 100 firms and large in-house departments, and its LexisNexis partnership patched its old research-grounding gap. Rank assumes an enterprise buyer who can fund a platform rollout."},{"model":"Grok","reason":"Deep custom workflows, agentic capabilities for complex diligence, contract analysis, and regulatory work; strong adoption and proven value in AmLaw 100 and enterprise in-house settings with secure collaboration and high accuracy in domain-specific tasks"},{"model":"ChatGPT","reason":"Strongest flexible enterprise work platform for complex drafting, large-scale document review, internal knowledge, reusable workflows, Word-based work, and multi-jurisdictional matters; especially compelling for sophisticated firms and large in-house departments."},{"model":"Gemini","reason":"Offers superior custom fine-tuning and enterprise RAG, allowing larger firms and corporate legal departments to build tailored, playbook-driven workflows directly on top of their proprietary internal document systems."}],"fixes":[{"model":"ChatGPT","fix":"Enterprise pricing, implementation demands, and less inherently authoritative research coverage make it a weak fit for solos and many small firms."},{"model":"Claude","fix":"Enterprise-only economics and onboarding — overkill and effectively unavailable for solos and small firms, and firms without dedicated innovation staff struggle to extract its value."},{"model":"Gemini","fix":"Lacks pricing transparency and requires massive implementation budgets, making it unviable for mid-market and solo practitioners."},{"model":"Grok","fix":"High enterprise pricing and seat minimums; NOT for solos, small firms, or budget-conscious practices."}],"updated":"2026-07-15","api":"https://modelsagree.com/api/v1/best/best-ai-legal-assistant.json"},{"slug":"best-ai-legal-assistant-for-law-firms","title":"Best AI legal assistant for law firms","rank":2,"of":7,"score":14,"appearances":4,"modelRanks":{"ChatGPT":3,"Claude":1,"Gemini":5,"Grok":1},"reason":"The most capable end-to-end legal AI — handles complex research, drafting, contract/document analysis (Vault for large corpora), and custom firm-specific agentic workflows across practice areas on a frontier-model backbone with legal tuning; deep, high-stakes BigLaw adoption (A&O Shearman, PwC) validates real-world reliability. Assumption: ranked #1 for firms that can absorb enterprise pricing and need breadth over a single research task.","reasons":[{"model":"Claude","reason":"The most capable end-to-end legal AI — handles complex research, drafting, contract/document analysis (Vault for large corpora), and custom firm-specific agentic workflows across practice areas on a frontier-model backbone with legal tuning; deep, high-stakes BigLaw adoption (A&O Shearman, PwC) validates real-world reliability. Assumption: ranked #1 for firms that can absorb enterprise pricing and need breadth over a single research task."},{"model":"Grok","reason":"Leading enterprise platform for BigLaw with strong custom legal models, deep document analysis, due diligence, drafting, and workflow automation at scale; excels in complex matters for AmLaw 100 firms with proven adoption and integrations."},{"model":"ChatGPT","reason":"The strongest general-purpose legal work platform for well-resourced firms, with independently strong document analysis, redlining, chronology, drafting, firm-knowledge, and workflow performance plus integrated Lexis content"},{"model":"Gemini","reason":"The gold standard for enterprise-grade customization, security, and multi-jurisdictional compliance, allowing large firms to securely train custom models on their own internal work product and precedents for bespoke document drafting and due diligence."}],"fixes":[{"model":"ChatGPT","fix":"Enterprise pricing, deployment effort, and seat expectations make it ill-suited to most solos and small firms"},{"model":"Claude","fix":"Enterprise-only pricing and sales cycle put it out of reach for solo/small firms, and it has no proprietary primary-law database of its own — not for practitioners whose core need is citation-verified case-law research."},{"model":"Gemini","fix":"Prohibitively expensive with strict minimum seat counts, effectively locking out solo, small, and mid-sized firms in favor of the Am Law 100."},{"model":"Grok","fix":"Extremely high cost (often $1,000+/seat/mo with seat minimums) and overkill for small/mid-size firms or simple tasks—not for budget-conscious or solo practitioners."}],"updated":"2026-07-14","rank_history":{"days":["2026-06-25","2026-07-12","2026-07-13","2026-07-14"],"ranks":[1,1,3,1]},"reasoning_shift":[{"model":"Claude","from":"2026-07-12","to":"2026-07-14","added":[{"t":"frontier model with legal tuning","q":"on a frontier-model backbone with legal tuning"},{"t":"citation-verified research limitation","q":"not for practitioners whose core need is citation-verified case-law research"}],"dropped":[{"t":"top-tier independent benchmark performance","q":"top-tier performance on independent benchmarks like the Vals Legal AI Report"},{"t":"engineering resources to keep shipping","q":"the engineering resources (OpenAI partnership, massive funding) to keep shipping"},{"t":"heavy onboarding","q":"heavy onboarding"}]}],"api":"https://modelsagree.com/api/v1/best/best-ai-legal-assistant-for-law-firms.json"}],"page":"https://modelsagree.com/product/harvey","check":"https://modelsagree.com/check?q=Harvey","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}