Apple unveiled a long-awaited AI strategy on Monday, integrating “Apple Intelligence” across its suite of apps including Siri, and announced a partnership with Open AI to bring Chat GPT to its devices. With these moves, the iPhone maker is seeking to reassure investors that it has not lost the AI battle to Microsoft , even though it may have forfeited a few rounds. Microsoft took an early lead in the race to commercialize AI through its bet on Open AI. But shares of the iPhone maker were down nearly 2% in afternoon trading as investors sought more AI announcements.