Sensor Tower: ChatGPT's market share fell
Sensor Tower: ChatGPT's market share fell to 46.4% by the end of May, as Gemini rose to 27.7% and Claude to 10.3%; Grok, Meta AI, and others have less than 5%
More than three and a half years after ChatGPT's initial release, AI assistants are now used by millions of people worldwide, and the competitive landscape is changing fast.

Zhipu launches GLM-5.2, says it markedly improves coding and agentic tasks
We're introducing GLM-5.2, our latest flagship model for long-horizon tasks. It marks a substantial leap in long-horizon task capability …

Microsoft's Copilot Cowork moves to usage-based billing and may tap
Microsoft is weighing a fine-tuned version of Deepseek V4 as a cheaper model option for Copilot Cowork. The company is also switching to usage-based billing, since Copilot head Charles Lamanna says flat-rate pricing isn't sustainable. The move fits a broader pattern in the…