A recent landmark court ruling in the copyright case between Thomson Reuters and Ross Intelligence has fuelled the debate about the future of artificial intelligence and intellectual property rights. The case  establishes legal precedent and opens up areas of risk  for AI companies as they navigate the intricate landscape of copyright law.

Thomson Reuters accused Ross Intelligence of illegally using content from its Westlaw database to train AI models, resulting in a decision for Thomson Reuters and dismissed Ross’s fair-use defence.

The rejection of the fair-use defence poses potential legal risks for prominent AI companies such as OpenAI and Anthropic, prompting them to reconsider their data collection strategies in light of the ruling’s implications.

In arriving at this decision, the Judge applied a four-factor test to evaluate fair use claims. These factors include:

• the purpose and character of the use
• the nature of the copyrighted work
• the extent and significance of the portion used in relation to the entire copyrighted work, and
• the impact of the use on the potential market or value of the copyrighted work.

The ruling indicated that Thomson Reuters prevailed on both the first and fourth factors, which were given higher weight in the decision.

It should be noted that Ross Intelligence ceased operations in 2021 due to the substantial costs associated with litigation.