Despite hefty investment into AI, Microsoft is struggling to make headway against ChatGPT and a host of other AI assistants.

Tyson Jominy routinely summons Microsoft Corp.’s AI assistant by tapping the Copilot key on his computer. Not because he ...

Twitter co-founder Jack Dorsey developed Bitchat, a privacy-focused messaging app that works offline via Bluetooth without requiring email, phone numbers or personal data.