Britain’s competition regulator on Tuesday said that it is investigating to see if Google parent Alphabet’s partnership with artificial intelligence startup Anthropic has resulted in reduced competition.

The Competition and Markets Authority (CMA) said it is looking into whether a partnership between the two firms has led to a “relevant merger situation,” and if that “may be expected to result in a substantial lessening of competition” in the U.K.

The regulator has invited comments from interested parties before beginning a formal investigation.

Alphabet and Anthropic were not immediately available for comment when contacted by CNBC.

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