Not legal advice · Summaries of vendors' public pages, which change often. Verify with the vendor and your contract before relying on anything here.

Does CoCounsel (Thomson Reuters) train on your data?

Business plan Thomson Reuters · Legal · Last verified

Doesn't train by default

Doesn't train on business data by default.

Short answer: No

Why this matters: A "no" keeps your prompts and files out of Thomson Reuters's models, where they couldn't be removed later. Confirm it covers the plan you use. Why training matters →

3/7 assurances found·6 of 9 fields confirmed from vendor pages

Below, check how long CoCounsel (Thomson Reuters) keeps your data and what it says about security and AI-management standards (SOC 2, ISO 27001 and ISO 42001). We also cover data processing agreements (DPAs), business associate agreements (BAAs) and HIPAA support, where data can be stored or processed, and zero data retention. Each answer links to Thomson Reuters's own page.

Summary of Thomson Reuters's public pages as of Nov 9, 2026. Not legal advice: terms vary by plan and contract and can change. Confirm with Thomson Reuters before relying on it.

Trains on your data by default

No
Source:
  • thomsonreuters.com/en/cocounsel · checked Nov 9, 2026
    “No. Your user content and prompts are not used to train or improve CoCounsel and associated products or LLMs”

Data retention

Customer-set retention

Set at the organization level; users can delete anytime.

Source:
  • thomsonreuters.com/en/cocounsel · checked Nov 9, 2026
    “Retention of user content and prompts is customized to fit customer needs and set up at the organization account level with the support of a Thomson Reuters client manager.”
  • thomsonreuters.com/en/cocounsel · checked Nov 9, 2026
    “Users can delete their content and prompts in the product at any time.”

SOC 2 Type II

Type not stated
Source:

ISO/IEC 27001

Unknown

Not stated on any vendor page we checked.

ISO/IEC 42001

Yes
Source:

DPA available

Unknown

Not stated on any vendor page we checked.

BAA / HIPAA

Unknown

Not stated on any vendor page we checked.

Data residency options

Yes

US by default; UK, Australia and Canada available.

Source:

Zero-retention option

Yes

Zero-retention calls to LLM providers (OpenAI, Google).

Source:

Vendor pages we monitor for this tool

We calculate a code from the page’s visible text each time we check it (a SHA-256 fingerprint). Changes to that code help us spot edits to the vendor’s terms.

PageCheckedFingerprint
https://www.thomsonreuters.com/en/cocounselNov 9, 2026aeae42e314b7…
https://legal.thomsonreuters.com/en/products/cocounsel-legalNov 9, 2026b0c949173a6e…

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