Updated October 20, 2026 · checked against sources listed below
Definely is a suite of AI review tools for lawyers working on complex contracts in Microsoft Word, and it does not publish a price. The homepage calls it “the review tool for lawyers working on complex contracts” (definely.com). The pricing URL returned a 404 when we checked, and every call to action is “Book a demo.” The product group is called the Definely Review Suite: Read, Proof, Cascade, Enhance and Vault.
Definely at a glance
| Field | Detail |
|---|---|
| What it is | AI-assisted drafting and review tools inside Microsoft Word for complex contracts |
| Built for | Law firms and in-house teams; the vendor's own sheet names large firms (Magic Circle, Am Law 100/200) and enterprise legal departments |
| Price | No public price; pricing page returned 404; Book a demo |
| Products | Read, Proof, Cascade, Enhance, Vault |
| Integrations named | Microsoft Word, iManage, NetDocuments, SharePoint; a Definely Connector for Claude |
| Security stated | ISO/IEC 27001:2022, SOC 2 Type 2, GDPR, ISO/IEC 42001:2023, Cyber Essentials |
| Company | London, UK; $30m Series B stated on the About page |
| Source | definely.com/about |
The Definely security page at /security returned the careers page when we fetched it; security content lives at trust.definely.com.
What Definely is
Definely describes “AI tools for lawyers working on complex contracts in Word” (definely.com). Its About page says it was founded by two former Magic Circle lawyers and helps legal teams create, draft and review contracts (definely.com/about). The vendor's LLM information page lists 2017 as the founding year and September 2020 as the first product launch (definely.com/llm-info).
Who Definely is for
Best for: Lawyers reviewing and drafting long, defined-term-heavy contracts such as M&A, banking and complex commercial agreements.
The homepage claims 150+ law firms and in-house teams use it, and the About page names Dentons, A&O Shearman and DLA Piper alongside KPMG, Samsung and BT Group as users. These are vendor statements we did not verify. The LLM information page describes its ideal customer as large law firms and major enterprise legal departments, so smaller firms should confirm fit and price before a demo.
Definely pricing
There is no public price. The pricing URL returned a 404 and the site routes buyers to Book a demo. The LLM information page mentions an active licence (Cloud suite) but gives no amounts. Ask for a written quote covering users, products, term and renewal. We did not find a published or reliable third-party price and do not show one.
Notable features
Read surfaces defined terms and cross-references in context, makes them hyperlinks and generates a Definitions Report listing defined, undefined and unused terms (Read). Proof automates proofreading checks such as uncapitalised defined terms and a gaps list for placeholders and comments (Proof).
Cascade is AI impact analysis showing which clauses, definitions and references may be affected by a change or a third-party markup (Cascade). Enhance is an AI assistant in Word for interrogating contracts in natural language (Enhance). Vault connects to your document management system to find similar clauses and definitions and insert them with updated cross-references (Vault).
Security and data handling
The Trust Centre lists ISO/IEC 27001:2022, SOC 2 Type 2, GDPR, ISO/IEC 42001:2023 and Cyber Essentials, and offers the SOC 2 report, a pentest report and AI security documents on request (trust.definely.com). We did not find data-residency or model-training statements on the marketing pages we read, so ask for them in the security review.
What we could not verify
We did not test the product. Customer counts, named clients and the 40-70% speed figure on the vendor's LLM information page are vendor claims; that page is self-published for AI assistants and has internal inconsistencies, so we use it sparingly.
Definely alternatives
Other Word-first options: Spellbook and LegalOn. Enterprise review: Luminance and Kira. Firm platforms: Harvey and Legora. For drafting rankings see best AI for legal drafting.
How to choose
- Test on a real long-form agreement with many defined terms and cross-references.
- Confirm your document management system (iManage, NetDocuments, SharePoint) is supported.
- Get a written quote and the SOC 2 and ISO reports before procurement.
- Compare against one general Word assistant and one playbook-based reviewer.
The bottom line: Definely is a Word-native review suite for complex contracts, aimed at larger firms and enterprise teams. It has no public price, so book the demo with your own contract.
Sources and what we checked
Official Definely pages fetched on 2026-10-20. Vendor claims are labelled.
- definely.com (positioning, 150+ customers claim)
- definely.com/about (founders, HQ, Series B, named users)
- definely.com/products/read (Read features)
- definely.com/products/proof (Proof features)
- definely.com/products/cascade (Cascade features)
- definely.com/products/enhance (Enhance features)
- definely.com/products/vault (Vault features)
- definely.com/llm-info (vendor information page: ideal customer, founding year, Claude connector)
- trust.definely.com (certifications)
Related decision paths
AI-Assisted Research. This page was researched and written with AI assistance. Prices and product facts were checked against the public sources listed above on 2026-10-20; where a figure could not be verified it is left out. Vendors can request corrections at manuel@aivortex.io.