AI CHIP: China’s DeepSeek is developing its own AI chip in a push that may reduce reliance on Nvidia (NVDA) and Huawei chips, Reuters reports, citing three people familiar with the matter. The chip is designed for inference instead of for training new models, the sources added.

OWN AI: Microsoft (MSFT), looking to reduce AI costs, is starting to replace OpenAI and Anthropic with its own models in software products like Excel and Outlook, Bloomberg’s Brody Ford reports. Tens of thousands of AI prompts in the widely used spreadsheet and email applications are now being completed each week with Microsoft’s internally built MAI models, according to a person familiar with the work. Previously Excel and Outlook relied more heavily on models from OpenAI and Anthropic, said the person.

CLAUDE COWORK: Anthropic said in a blog post, “Claude Cowork is rolling out to mobile and web so your sessions and files go where you go, on any device. Beta access is rolling out to Max users over the next few days, and will expand to more plans over the next several weeks. Cowork is where you hand Claude a task, and it works across your files, calendar, email, messaging app, the web, and the other tools you connect until the job is done… To mark the launch, we’re extending doubled Cowork usage limits through August 5, so there’s plenty of room to try bigger tasks.”