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HomeColumnsAIコンサルApple Intelligence Complete Guide | Siri Overhaul in iOS 26.4, Google Gemini Integration & 2026 Evolution
AIコンサル

Apple Intelligence Complete Guide | Siri Overhaul in iOS 26.4, Google Gemini Integration & 2026 Evolution

Published2026-01-21Ryuta Hamamoto
BusinessConsultingAIGenerative AICloud

Apple Intelligence is receiving a major update in 2026. iOS 26.4 brings a fully redesigned Siri with conversation memory and proactive suggestions.

Apple Intelligence Complete Guide | Siri Overhaul in iOS 26.4, Google Gemini Integration & 2026 Evolution
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This is Hamamoto from TIMEWELL.

In 2026, Apple Intelligence has evolved from a "personal AI assistant" into an "intelligent ecosystem."

Apple Intelligence first appeared with iOS 18.1 in autumn 2024. As of January 2026, it is available worldwide as iOS 26.1 and supports more than 15 languages including Japanese. In January 2026, Apple and Google also announced a partnership, with plans to integrate Google's Gemini model into future versions of Apple Intelligence.

This article covers Apple Intelligence's current state in 2026, the major update expected in iOS 26.4, and what to expect going forward.

Apple Intelligence: Latest Information for 2026

Item Details
Current version iOS 26.1 / iPadOS 26.1 / macOS 26.1
Next update iOS 26.4 (expected spring 2026)
Supported languages 15+ (Japanese, Chinese, Korean, etc.)
Apple-Google partnership Announced January 2026 (Gemini integration planned)
iOS 27 Expected announcement at WWDC 2026 (June)
Health+ AI health coach feature planned
Developer API Now open to third parties

iOS 26.4 — A Completely Redesigned Siri

Introducing Personalized Siri

iOS 26.4, scheduled for spring 2026, brings a ground-up redesign of Siri.

New Siri features in iOS 26.4:

  • Conversation memory: Remembers past interactions and retains context
  • Proactive suggestions: Learns user behavior patterns and anticipates needs
  • New design: A significantly overhauled visual experience
  • More natural voice: A conversational experience closer to talking with a person

With these changes, Siri evolves from "an assistant that executes commands" to "a partner that understands you."

System-Level Intelligence

In iOS 26.4, Apple Intelligence becomes more deeply integrated across the entire system.

Areas being enhanced:

  • Siri: Smarter and more natural
  • Health: Stronger AI-powered health insights
  • Security: Enhanced privacy protection
  • System: Overall performance optimization

The Apple-Google Partnership — Gemini Integration

Details of the January 2026 Announcement

In January 2026, Apple and Google announced a multi-year partnership.

Key elements of the partnership:

  • Integration of Google's Gemini model into Apple's foundation models
  • Leveraging Google's cloud infrastructure
  • Enhancement of future Apple Intelligence features
  • Expansion of Siri's capabilities

This partnership has the potential to dramatically increase Apple Intelligence's capabilities.

ChatGPT and Gemini Side by Side

Apple Intelligence currently integrates seamlessly with OpenAI's ChatGPT. With the addition of Gemini, users will soon benefit from multiple AI models at once.

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Looking Ahead to iOS 27 — WWDC 2026

WWDC in June 2026

iOS 27 is expected to be announced at WWDC 2026 in June, with a general release planned for September 2026.

Expected features of iOS 27:

  • Bloomberg's Mark Gurman describes it as a "Snow Leopard"-style update
  • Focus on quality and performance improvements
  • Further expansion of Apple Intelligence features
  • Satellite internet via 5G (potentially limited to iPhone 18 Pro models)

Rumored New Features

Anticipated new Apple Intelligence capabilities:

  • AI Calendar: Automatic schedule optimization
  • Health+ subscription: AI health coach with nutrition plans and medical suggestions
  • Deeper third-party integration: More apps leveraging Apple Intelligence

Developer API Opens — Expanding the Ecosystem

Opening the Door to Third Parties

In 2026, Apple is pushing a strategy to open Apple Intelligence models to third-party developers.

Features available to developers:

  • Native support via Swift integration
  • Access to on-device foundation models
  • Smart search functionality
  • Text understanding
  • Context-based automatic action suggestions

This means virtually any app on the App Store can now benefit from Apple Intelligence.

Current Features in Detail

Photo Clean Up

AI-powered removal of unwanted objects from photos in a natural-looking way.

Use cases:

  • Remove passersby from backgrounds
  • Clean up product photos
  • Improve quality of event photos

Genmoji

Generate original emoji from text prompts.

Use cases:

  • Personal expression in business communication
  • Creating custom team emoji
  • Distinctive visuals for social media posts

Image Playground

An app that generates images from text.

Use cases:

  • Creating visuals for presentation materials
  • Generating marketing assets
  • Visualizing ideas

Mail Summarize

Instantly summarizes key points from long emails.

Use cases:

  • Efficient processing of high email volumes
  • Quickly catching important information
  • Determining reply priority

Writing Tools

Assists with tone adjustment, rewriting, and drafting content.

Use cases:

  • Adjusting tone in business emails
  • Drafting presentation scripts
  • Generating report outlines

Visual Intelligence

Recognizes and acts on real-world information through the camera.

Use cases:

  • Extracting event information from posters
  • Automatically registering contacts from business cards
  • Analyzing competitor products

Then vs. Now: The Evolution of Apple Intelligence

Item Then (iOS 18.1 launch, October 2024) Now (January 2026)
Version iOS 18.1 iOS 26.1
Supported languages English only 15+ (including Japanese)
Regions US-first Available worldwide
Siri Basic enhancements Conversation memory & proactive suggestions (in 26.4)
External AI integration ChatGPT only ChatGPT + Gemini (planned)
Developer API Not open Open to third parties
Health features Basic Health+ AI coach (planned)
Multilingual support Limited Japanese, Chinese, Korean, French, German, Spanish, etc.

Compatible Devices

iPhone

  • iPhone 15 Pro / 15 Pro Max
  • iPhone 16 / 16 Plus / 16 Pro / 16 Pro Max
  • iPhone 17 series (released 2025)

iPad

  • iPad Pro with M1 or later
  • iPad Air with M1 or later

Mac

  • All Mac models with M1 or later

Privacy-First Design

Apple Intelligence is designed with privacy as the top priority.

How privacy is protected:

  • On-device processing: Handled on-device whenever possible
  • Private Cloud Compute: Dedicated infrastructure for cases requiring cloud processing
  • Data transparency: Clear disclosure of what data is processed where
  • User control: Full ability to toggle features on or off

Enterprise Adoption Strategy

Companies That Should Adopt Apple Intelligence

  • Companies that use Apple products for business
  • Companies with heavy creative workloads
  • Companies seeking greater efficiency in information processing
  • Companies that prioritize privacy

Adoption Approach

Phase 1: Individual evaluation

  • Update employee devices to iOS 26.1
  • Evaluate the business utility of each feature

Phase 2: Team-level adoption

  • Apply Writing Tools and Mail Summarize to business workflows
  • Streamline document creation with Image Playground

Phase 3: Workflow integration

  • Embed Visual Intelligence into business processes
  • Leverage integration with third-party apps

Summary

Apple Intelligence has reached a major turning point in 2026.

Key takeaways from this article:

  • iOS 26.1 supports 15+ languages including Japanese
  • iOS 26.4 (spring 2026) brings a major Siri overhaul — conversation memory, proactive suggestions
  • The Apple-Google partnership plans to integrate Gemini models
  • iOS 27 to be announced at WWDC 2026 (June), release planned for September
  • Developer APIs are now open, expanding the ecosystem
  • New features such as Health+ AI health coach are in the pipeline
  • Privacy-first design continues

Roughly two years after the iOS 18.1 launch in October 2024, Apple Intelligence has evolved from "a handful of features" into "intelligence that permeates the entire Apple ecosystem." With the Siri overhaul in iOS 26.4, the Gemini integration, and the expansion of the developer ecosystem, Apple Intelligence will continue to transform our daily lives and business operations in ever deeper ways.

For businesses, leveraging Apple Intelligence represents a major opportunity for productivity gains. We recommend keeping a close eye on each update throughout 2026 and exploring how to integrate these capabilities into your own workflows.

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This article was produced with the help of AI. A human verified the primary sources and edited the text before publication.

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