How do their growth rates compare?

Harvey has a month-over-month growth rate of +26.1%; OpinioAI has 0%.

How does pricing compare?

Harvey: Contact for Pricing. Enterprise pricing, quoted on request. Harvey does not publish public list prices; prospective customers typically request a demo and receive a custom proposal based on team size, modules, and usage. OpinioAI: Freemium, Paid. OpinioAI is listed as freemium with paid plans, so you can start exploring AI personas and research at no cost and upgrade for higher usage. Check the site for the current tiers and credit limits, as exact rates are subject to change.

What are alternatives to Harvey and OpinioAI?

Other tools in related categories include Prolific, Thomson Reuters, Branded, Filevine (LOIS), Outset.ai.

Harvey vs OpinioAI — Traffic (1.83M vs 0), Pricing & Verdict

Open AI Tools

Harvey vs OpinioAI — Traffic (1.83M vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Harvey	OpinioAI
Official Domain	harvey.ai	opinio.ai
Pricing Model	Contact for Pricing	Freemium, Paid
Monthly Visits	1.83M (1,832,998)	0 (0)
MoM Traffic Delta	+379.29K (+26.1%)	0 (0%)
Primary Market & Share	🇺🇸 United States (51%)	🌐 Global (—)
Direct Visits / mo	1.28M	0
User Rating	4.6	4.3
Supported Platforms	Website	Website

Harvey

Domain-specific AI for law firms, in-house legal teams, and professional services

Legal agents and orchestration

Task-level agents handle research, drafting, and analysis and can route complex multi-step matters to the right specialist agent automatically.

Vault document analysis

Centralize thousands of contracts and matter documents in one secure repository, then extract clauses, terms, and portfolio-wide insights with a single query.

Legal, regulatory, and tax research

Knowledge supports jurisdiction-aware research grounded in authoritative legal sources, with citations back to the underlying material.

Spaces and ethical walls

Shared workspaces let firms, clients, and co-counsel collaborate with the governance controls sensitive legal work requires.