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Westlaw

Thomson Reuters' flagship legal research platform, providing case law, statutes, and analytical content to lawyers and legal researchers.

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investConfirmed3 publishers

Thomson Reuters keeps its win over ROSS in the first appellate test of AI-training fair use

Thomson Reuters kept its copyright win over ROSS Intelligence on appeal, the first US appellate ruling on fair use in AI training. ROSS had been refused a Westlaw licence as a rival, so the ruling lets owners of training data set a price or decline to sell.

Perspective Coverage

3 publishers
Builder
Builder 19%
Operator
Operator 38%
Investor
Investor 43%

Reality

Evidence55
Adoption30
Hype gap+25
Incentives55
Confidence60
buildConfirmed4 publishers

Thomson Reuters priced the middle path at $40M, and still pays Anthropic

The $450,000 training run everyone is quoting is about one percent of the programme behind it. The in-house model took one CoCounsel feature; the agent layer under it stays licensed.

Perspective Coverage

4 publishers
Builder
Builder 35%
Operator
Operator 40%
Investor
Investor 25%

Reality

Evidence54
Adoption27
Hype gap+34
Incentives78
Confidence63