What Actually Shipped

iOS 27 rolled out publicly on Monday, September 14, 2026, alongside the new iPhone 18 Pro, iPhone 18 Pro Max, and iPhone Duo. The headline feature is a completely rebuilt Siri, now running on Google's Gemini models instead of Apple's older, narrower assistant. The new Siri can search the web, summarize content, help with code, analyze files, and hold context across 20 or more exchanges in a single conversation, closer to a full chatbot than the command-taking Siri of the past decade.

The architecture is split: simple, on-device tasks like setting an alarm or checking the weather still run locally on the phone, while more demanding requests, summarizing a long document, answering a deep question, or executing a multi-step action across several apps, are processed in the cloud through Gemini. That cross-app execution is the real shift: Siri can now be asked to complete a task that touches multiple apps, not just answer a question about one.

Who Actually Gets It

The full Siri AI experience is gated by hardware. It requires an iPhone 15 Pro or later, or an iPad or Mac with an M1 chip or newer. iOS 27 itself installs on older supported iPhones, but on anything before the iPhone 15 Pro, the AI features are greyed out or missing entirely. That means adoption will roll out in waves over the next one to two upgrade cycles, not overnight.

  • Siri can now take action, not just answer. Multi-step, cross-app execution turns it into an assistant that completes tasks, not a search box with a voice.
  • Adoption is gradual, tied to hardware. Only iPhone 15 Pro and later get the full experience, giving businesses a runway before this becomes how most customers interact with their phones.
  • It's one piece of a bigger race. OpenAI's GPT-Live voice model and Google's own Gemini 3.8 Live launched around the same window, all competing to be the AI layer customers talk to first.
Quick Insight

When an AI assistant can search the web and act across apps on a customer's behalf, how your business's content and data are structured for that assistant to read and cite starts to matter as much as how your website ranks in a search engine.

What This Means for Your Business

You don't need to rebuild anything today, hardware-gated rollouts take time. But it's worth starting now to think about how an AI assistant like the new Siri would describe your business if a customer asked it to. Clear, well-structured content, accurate business information, and a site built to be read by AI systems, not just browsers, are what make a business easy for an assistant to find and recommend.