<ul data-eligibleForWebStory="true">Apple aims to release its delayed Siri upgrade in spring 2026 to boost its AI efforts.The Siri upgrade is targeted to be part of the planned iOS 26.4 software release in March.No exact date has been set, but a spring release timeframe is expected.The major Siri revamp might be previewed during the autumn iPhone release if development progresses well.Apple faced delays in releasing the Siri AI features due to technical challenges, pushing the release indefinitely.The delays have impacted Apple's AI strategy, affecting the sales pitch for new iPhones.Apple reorganized its AI development teams earlier, relocating Siri responsibilities to Mike Rockwell and Craig Federighi.Apple is aiming to develop a more complex 'LLM Siri' powered by a large language model for advanced AI tasks.Initial attempts to combine the new features with the basic software led to errors and necessitated rebuilding Siri from scratch.Apple is debating internally on the extent of developing AI technology in-house versus relying on external partners like OpenAI.The company has also considered acquiring AI start-ups to enhance its AI capabilities.Tech firms, including Meta Platforms, have shifted between internal AI development and external investments to boost AI capabilities.