DeepSeek has tumbled to #51, weeks after dethroning OpenAI's ChatGPT as the most downloaded free AI app in Apple's App Store in the United States.

Since its founding in 2021, OpenAI Startup Fund has invested in over a dozen startups, including many of the hottest startups in AI.

Microsoft's Copilot app is now available on the Mac App Store, so insert your own joke about how many downloads this is going to witness.

Much of the company’s value resides in its increasingly powerful ChatGPT brand, and ChatGPT is increasingly doing things a next-gen OS might do.

In the fall, the company introduced technology called OpenAI o1, which was designed to reason through tasks involving math, coding and science. The new technology was part of a wider effort to build A.I. that can reason through complex tasks. Companies like Google, Meta and DeepSeek, a Chinese start-up, are developing similar technologies.

Apple does say the Mac is the best AI PC, and Microsoft is here for it. Starting today, Microsoft’s AI app called Copilot is now available on the Mac App Store. Copilot, which includes OpenAI and Microsoft models, was previously limited to the iPhone and iPad for Apple device users.

Elon Musk's Grok has overtaken OpenAI's ChatGPT, Google's Gemini, and DeepSeek to become the top productivity app on Apple's App Store.