WWDC 2026: Apple Overhauls Siri with Google Gemini and Introduces Multi-Model AI Choice

For years, Siri has been a familiar, if sometimes frustrating, presence in the Apple ecosystem. That is all set to change dramatically with the WWDC 2026 announcements. The core of this transformation lies in a strategic partnership: Apple is overhauling Siri from the ground up, and it will run on Google Gemini.

Bloomberg's Mark Gurman initially reported in November 2025 that Apple licensed a custom 1.2-trillion-parameter Gemini model from Google, a deal reportedly worth around $1 billion per year. This partnership was later confirmed by both Apple and Google in January 2026, making Siri the largest commercial deployment of Gemini outside of Google's own products. This move signifies Apple's commitment to delivering a more capable and intelligent virtual assistant, leveraging Google's advanced large language model capabilities.

Beyond the underlying AI engine, Siri is also receiving a complete user interface redesign. Leaked renders suggest that Siri will no longer be just a voice or a colorful floating orb. Instead, it will feature its own standalone application, offering a full conversation history, allowing users to scroll back through past interactions. Crucially, the new Siri app will include full file upload support, enabling users to drop documents or images directly into the chat for contextual understanding and processing. This transforms Siri from a simple command-and-response tool into a more sophisticated, context-aware AI assistant, capable of handling complex queries and multimodal inputs, aligning it with modern AI chat experiences. The classic glowing orb interface, which has been in use since 2011, is finally being retired, making way for a clean, text-based chat style interface.

Perhaps the most groundbreaking aspect of Apple's new AI direction is its multi-model strategy. While Gemini will serve as the default AI for Siri, Apple is introducing a new 'Extensions system' that will allow users to choose which AI model handles Apple Intelligence features. This means users will have the option to switch between Google Gemini, OpenAI's ChatGPT, or Anthropic's Claude, each with its own distinct voice to indicate which model is providing the response.

This decision marks a significant philosophical shift for Apple, moving away from a strictly walled-garden approach to AI. It acknowledges the diverse strengths of different frontier AI models and empowers users with choice, a move that could foster greater innovation within the developer community. Developers will likely be able to integrate their applications with this Extensions system, potentially allowing their apps to tap into the capabilities of multiple leading AI models based on user preference or specific task requirements. This could lead to a new wave of 'AI-agnostic' applications on iOS and macOS, where the underlying AI can be swapped out, much like choosing a default web browser.

The ability to select different AI models directly from within the core operating system, without needing separate third-party apps, streamlines the user experience and deeply embeds this choice into Apple's platforms. This strategic bet, where Apple focuses on private compute and hardware integration while licensing advanced models, stands in contrast to other tech giants building their own frontier models from scratch. This approach could allow Apple to rapidly deliver cutting-edge AI capabilities to its users by leveraging the best models available, while focusing its engineering efforts on optimizing the user experience and on-device integration.

These AI advancements have broad implications across the entire Apple ecosystem. For iOS and macOS developers, the revamped Siri and the multi-model AI Extensions system open up new avenues for creating intelligent applications. Developers might gain access to APIs that allow their apps to interact more deeply with Siri's enhanced capabilities, or to leverage the chosen AI model for specific tasks within their applications. Imagine an email client that can summarize threads using Claude, or a creative app that generates content via ChatGPT, all seamlessly integrated through Apple Intelligence.

The underlying hardware is also playing a crucial role. The new M5 chip, expected to be a highlight for Mac devices, has been specifically redesigned to place dedicated AI accelerators directly inside each individual GPU core. This hardware optimization is critical for handling heavy AI workloads on-device, such as text processing and local image generation, ensuring that Apple Intelligence features run efficiently and privately. This emphasis on local processing, combined with cloud-based model access, provides a robust platform for developers to build powerful, responsive, and privacy-preserving AI-driven experiences.

Furthermore, the introduction of a dedicated smart home hub, featuring a 7-inch touchscreen display (part iPad, part HomePod), with the new Siri built-in by default, expands the reach of Apple's AI to new device categories. This creates opportunities for developers in the smart home space to integrate their services with an always-on, AI-powered control center. The overall message from Apple at WWDC 2026 is clear: AI is no longer a supplementary feature but a core, foundational element of the Apple experience, designed to be both powerful and flexible for developers and users alike.