I was not addressing the size of the market. But the share.

According to https://en.wikipedia.org/wiki/Usage_share_of_web_browsers, Netscape had 60-70% market share. According to https://firstpagesage.com/reports/top-generative-ai-chatbots..., ChatGPT currently has a 60% market share.

But I consider the enterprise market a better indicator of where things are going. As https://menlovc.com/perspective/2025-mid-year-llm-market-upd... shows, OpenAI is one of a pack of significant competitors - and Anthropic is leading the pack.

Furthermore my point that the early market leaders are seldom the lasting winners is something that you can see across a large number of past financial bubbles through history. You'll find the same thing in, for example, trains, automobiles, planes, and semiconductors. The planes example is particularly interesting. Airline companies not only don't have a good competitive moat, but the mechanics of chapter 11 mean that they keep driving each other bankrupt. It is a successful industry, and yet it has destroyed tons of investment capital!

Despite your quibbles over the early browser market, my broader point stands. It's early days. AI companies do not have a competitive moat. And it is way to premature to reliably pick a winner.