OpenAI's ChatGPT, the chatbot that kicked off the generative AI boom, has slipped below 50% of the global AI assistant market for the first time, according to new figures reported by TechCrunch. It's a symbolic milestone for a product that not long ago felt synonymous with AI itself.
Still number one, but the gap is closing
Let's be clear about what this isn't: it isn't a collapse. ChatGPT remains the most popular AI assistant on the planet, with more than 1.1 billion monthly users. That's a staggering number — more people than the population of most continents reaching for the same chatbot every month.
What's changed is the rest of the field. For a long stretch, ChatGPT had so little real competition that its market share sat comfortably above half of all AI assistant usage. Now, as more capable rivals have matured and pushed hard into the consumer space, that dominance has thinned to just under 50%.
Gemini and Claude are eating into the lead
Google's Gemini has emerged as the clear number two, pulling in roughly 662 million monthly users. Google's advantage is obvious: it can fold its AI directly into Search, Android, Workspace, and the billions of devices already running its software. When an assistant shows up where people already are, adoption follows.
Anthropic's Claude rounds out the top three with about 245 million monthly users. While smaller than the two giants ahead of it, Claude has built a loyal following, particularly among developers, writers, and businesses that value its approach to longer, more careful reasoning. Its growth suggests there's real appetite for alternatives beyond the two biggest names.
Why the shift matters
Market share in a fast-growing category can be misleading. The overall pie is expanding so quickly that ChatGPT can keep adding users while still losing share — and that appears to be exactly what's happening. More people are using AI assistants than ever; they're just spreading their attention across more options.
For users, that competition is good news. Rival labs racing for the same audience tend to ship features faster, cut prices, and push quality higher. The era when one chatbot defined the entire category is giving way to a genuine multi-horse race.
What comes next
The big question is whether ChatGPT's slide stabilizes or continues. OpenAI still has enormous reach, deep partnerships, and brand recognition that money can't easily buy. But Google's distribution muscle and Anthropic's steady climb mean the company can no longer count on being the default choice by reputation alone.
For now, the headline is straightforward: ChatGPT is still the king of AI assistants, but it's ruling over a far more crowded kingdom than it was a year ago.
Source: TechCrunch.
