According to insider Mark Gurman at Bloomberg, Apple's new Siri - which was previously expected to launch at the start of the year - is delayed indefinitely and will not be part of the WWDC keynote in June.

The tech giant is instead expected to focus on new Apple Intelligence features such as the rumoured Battery Intelligence that will help extend a device's battery life using the power of AI.

The new is a big setback for Apple and Bloomberg claims it has seen internal data which shows that the firm "remains years behind its competition" in terms of its AI strategy, despite internal changes and a new approach to Siri.

However, an in-depth report from Gurman has given a deeper insight into the company's latest plans and the powerful tool the company is working on.

The Bloomberg insider states: "Employees say Apple now has its AI offices in Zurich creating a new software architecture to replace the problematic Siri hybrid - a so-called monolithic model, entirely built on an LLM-based engine, that would eventually make Siri more believably conversational and better at synthesising information."

The project has been codenamed LLM Siri and will be a major upgrade to the voice assistant that currently exists on the best iPhones and even in comparison to the initial promise Apple showcased at WWDC 2024.

It is claimed that Apple is incorporating synthetic data into the LLM to allow the company to train the AI "without feeding actual user information into the models".