OpenAI’s second-quarter revenue rose 18% quarter over quarter to $6.7 billion, while its operating margin sank further, according to a Wall Street Journal report summarized by Techmeme. The same report says Anthropic more than doubled its revenue to $11.6 billion in the same period. The provided summary does not include Anthropic’s prior-period revenue, margin profile, or the specific drivers behind the increase. The Journal also reported that OpenAI’s revenue disappointed some investors. The summary does not specify which investors, what internal or external forecast they were comparing against, or how much the result missed expectations. Taken together, the reported figures point to a widening debate around the economics of leading artificial intelligence companies: revenue is scaling quickly, but margin performance remains a central variable. For OpenAI specifically, the reported 18% sequential growth is substantial in absolute terms, yet the margin note suggests revenue growth alone may not resolve investor concerns. This remains a developing story because the cluster contains only one reputable aggregation item, and the key operating-margin detail is directional rather than quantified. The figures should be treated as reported by the Wall Street Journal unless the companies confirm them or additional outlets independently corroborate them. Who benefits: Anthropic benefits from the reported comparison if the $11.6 billion figure is confirmed, because it suggests rapid revenue acceleration in the same quarter. Investors seeking evidence of enterprise demand for AI services also get another data point. Who's exposed: OpenAI is exposed to questions about margins and investor expectations if the Journal’s reporting is accurate. The provided material does not identify the specific cost drivers or investor benchmarks behind that concern.