OpenAI's second-quarter revenue was $6.7 billion, an 18% increase from the first quarter, while its operating loss further widened, the Wall Street Journal reported on Wednesday, citing sources familiar with the matter. In contrast, competitor Anthropic's revenue exceeded $11.5 billion during the same period, a quarter-over-quarter increase of over 140%, surpassing OpenAI in quarterly revenue for the first time and achieving a small operating profit. Both companies are preparing for IPOs, with Anthropic planning to list in September or October this year, appearing to be ahead in pace.