New Delhi, Oct. 15 -- Anthropic, the maker of the Claude chatbot, has told prospective investors it generated $16.8 billion in third-quarter revenue and was profitable on an adjusted basis. However, it has not explained how it calculates either measure, raising questions about its finances ahead of a possible record-breaking stock market listing.

Anthropic disclosed the figures on Wednesday at an investor day at its headquarters, according to attendees. The listing is expected in November, at a valuation that could approach $2 trillion. The Financial Times first reported the figures.

Anthropic's third-quarter revenue of $16.8 billion was about 45% higher than the $11.6 billion reported for the second quarter, according to attendees. The...