BenchRank
#6 in Legal & ContractsUpdated 2026-08

CoCounsel

by Casetext · AI assistant for legal, tax, audit and accounting work

BenchRank score

24.1 — BenchRank score out of 100

Screenshots of CoCounsel

Homepage · CoCounsel

Homepage of CoCounsel

Overview

CoCounsel is Thomson Reuters' AI assistant for legal, tax, audit, accounting and compliance work. It answers from Thomson Reuters' authoritative content rather than the open web, and shows its sources and reasoning so users can verify the output. It integrates with Westlaw, Practical Law, Checkpoint, Microsoft 365 and document management systems.

Best for
Legal, tax, audit and accounting teams wanting AI answers tied to citable sources
Pricing
The captured pages show no prices or plans; the only route shown is a contact form for sales.
Runs on
Web

Strengths and trade-offs

Strengths

  • Connects to Westlaw, Practical Law, Checkpoint and Microsoft 365
  • Surfaces sources and reasoning so outputs can be checked
  • Prompts and user content are not used to train the LLMs
  • Region-based hosting offered in the UK, Australia and Canada

Trade-offs

  • No pricing published; buying runs through a sales contact
  • Answers restricted to Thomson Reuters' own content databases
  • Retention is set up by a client manager, not self-serve
  • Default processing, hosting and backups are US-based

How CoCounsel markets itself

A structured read of the promise, proof and page design on CoCounsel’s captured homepage.

Homepage capture

“CoCounsel: Fiduciary-Grade AI™ built for high-stakes professional work”

  • Angle: Category creation
  • Hero: Abstract graphic

Pricing

Published plans and prices from CoCounsel’s own pricing page.

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

  • MCP support

    Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.

  • API quality

    Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.

  • Documentation

    Publicly reachable docs — coverage, freshness, code samples and machine readability.

  • Agent friendliness

    How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.

  • Changelog

    A public, dated record of what shipped and when — the clearest signal that a product is still alive.

  • Marketing site structure

    Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.

  • Page speed

    How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.

  • Operational trust

    Status page and incident history, security disclosure, compliance and data-processing documentation.

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

  • Openness

    Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.

  • Maintenance

    Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.

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Where this comes from

The CoCounsel pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.

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