New Delhi, July 1 -- Apple is working on replacing Siri in future iPhones with advanced in-house AI models as well as advanced Large Language Models (LLMs) from Anthropic or OpenAI. This move will mark a significant reversal in Apple's preference for developing core technologies internally to better optimize them with the devices. But the rapid growth of AI features has put pressure on Apple to rely on other brands.

For years, Apple has relied on its proprietary foundation models to power its phone assistant Siri and other AI features. Despite significant improvements, Apple has lagged behind competitors like Google and Samsung, whose AI assistants have become better and gained popularity through the years. Recent rounds of internal test...