Irys (formerly Iqidis) vs WestlawWestlaw is the research standard. Irys is built for the whole matter.

Its editorial layer reflects decades of human curation: headnotes, the Key Number System, and the KeyCite citator, including KeyCite Overruling Risk. Many American lawyers first learned legal research on it.

The current lineup is broader than a search box. Westlaw Advantage adds agentic Deep Research and a Litigation Document Analyzer. Westlaw Edge with AI-Assisted Research supports plain-language questions and AI Jurisdictional Surveys. A CoCounsel Essentials add-on brings drafting and review into Microsoft Word, and CoCounsel Legal unites research, drafting, and document analysis for firms that want the full Thomson Reuters stack.

If your primary need is deep, validated research authority, Westlaw belongs on your shortlist. This page is about a different question: where the rest of the matter work happens.

As of August 3, 2026, its online store listed Westlaw Advantage at $256.75 per month for single-circuit coverage and $399.75 per month for all states and federal coverage. Westlaw Edge with AI-Assisted Research started at $155.35 per month for single-circuit coverage on a three-year term, and $266.50 per month for all states and federal on a three-year term.

Those figures carry conditions. Online pricing applies to new customers at firms of up to 10 attorneys. Two-year plans carry a 12 percent discount and three-year plans an 18 percent discount, so the lowest advertised rates assume a multi-year commitment. Pricing for larger firms and existing customers runs through sales and is not publicly listed. Some capabilities, such as Word drafting through CoCounsel Essentials, are sold as separate tiers or add-ons.

Westlaw offers a 7-day free trial. Published prices change and vary by coverage, term length, and firm size, so confirm current figures with Thomson Reuters before budgeting.

No AI-first platform replicates a century of editorial work overnight, and Irys does not claim to. Westlaw's headnotes, Key Number System, and KeyCite remain a benchmark for verifying that an authority is still good law.

Agentic research at scale. Agentic research at scale. Deep Research on Westlaw Advantage plans and executes multi-step research across Thomson Reuters' legal content.

Familiarity and ecosystem. Many associates arrive already trained on Westlaw, and firms invested in Practical Law and CoCounsel get a connected Thomson Reuters environment. If your firm's workflows are built around that ecosystem, it is a real advantage.

Drafting and document work in the Thomson Reuters ecosystem come through CoCounsel products, each with its own plan and entitlements; access to Westlaw or Practical Law content requires the relevant content subscriptions. Irys is built as one matter platform: legal research, drafting, document analysis, and matter context in a single product at a single published price that does not change based on jurisdictional coverage.

Irys preserves matter structure across sessions, so the next task can use the relevant documents, facts, people, dates, and authorities without rebuilding the context in every prompt. Output is source-linked, so you can check where each material statement came from, and a Word add-in keeps drafting where you already work. Built-in e-signature carries documents through execution.

Workbench connects Irys to applications like Gmail, Google Drive, Calendar, Outlook, OneDrive, and Slack, and can prepare work across them. Workbench requires your approval before it sends or files work on your behalf; it does not act autonomously.

Pricing is public and flat. Irys One is $299 per month with no per-token or per-query overage on the advertised plan. Irys Teams is $329 per seat per month for teams of 2 to 25 attorneys. The trial is 7 days with no credit card required. Many firms will keep a research subscription alongside Irys; the practical question is which platform carries the daily work of the matter.

Both products offer 7-day trials, so run the same real matter through each and ask the questions that decide the outcome.

Choose Irys when you want research, drafting, matter context, connected application actions, and finished work product in one platform, at a published price you can verify today, with a self-service trial that lets you test it on real work before committing.

These are not mutually exclusive. Plenty of firms will run both. But if you are paying separately for research, drafting tools, and e-signature, and still rebuilding matter context in every chat window, it is worth seeing what a single matter platform changes.