ContractKen vs ThoughtRiver

ContractKen is contract review software delivered as a web product and extension, operating as an AI sidekick inside Microsoft Word. It supports drafting, reviewing and negotiating contracts, then turning agreements into operational business intelligence. During review, it identifies and explains problematic language against customer playbooks and can redline the wording. Drafting can use a customer’s precedents, termsheets and clause library, which contains more than 700 commercial clauses and accepts customer-owned clauses. The Word add-in also provides formatting and proofreading. Listed capabilities include clause extraction, risk identification, term comparison and OCR. Custom workflow integrations can include iManage, while enterprise single sign-on supports Azure AD, Okta and Google Workspace. ContractKen says customer documents, prompts and outputs are not used to train public or shared models. It states TLS 1.2-or-higher protection in transit and AES-256 at rest. Private deployment can place inference inside a customer Azure tenant or VPC. Pricing starts at 119 /user/mo billed annually.

ThoughtRiver is an AI contract review tool for agreements reviewed before or after signing. Its Lexible LLM flags issues, obligations, and risks, while Playbooks check contracts against preset criteria and show which provisions are met or unmet. Teams can generate review output or redlines, and generative editing is designed to follow drafting style and negotiation guidelines. Contracts can be submitted by email, drag and drop, or the Word add-in; the platform works inside Outlook, Word, and Teams. Listed integrations include Microsoft 365, Power BI, HighQ, and iManage, and ThoughtRiver provides a public API following the OpenAPI Specification. It focuses on in-house teams and law firms processing over 200 agreements per year, while also supporting non-legal teams. ThoughtRiver lists no free plan and a 28-day trial. Monthly plans are 6.00 USD, 14.00 USD, and $49 a month; Professional starts at £15,000 a year and Enterprise at £30,000 a year.