Apple has introduced PROSE (Preference Reasoning by Observing and Synthesizing Examples), a breakthrough AI tool designed to make your writing assistant sound just like you. Unveiled in a research paper ahead of ICML 2025, PROSE sets a new benchmark in personalized writing assistance.
Rather than asking users to manually define their preferences, PROSE learns directly from multiple writing samples, capturing tone, style, and structure. The goal: to help AI write with your unique voice.
🔍 How PROSE Works
Apple’s PROSE tool uses a two-step method:
- Learning by Comparison: It reads your writing samples and compares them to generic AI-generated text.
- Synthesizing Style Traits: The system identifies consistent preferences—such as sentence length, word choice, and tone—and stores them in a profile.
Once trained, the AI can produce writing that closely resembles your own across emails, documents, and more.
🧠 7 Powerful Features of Apple’s PROSE AI Tool
- Real-Time Style Matching
Instantly adapts text to your personal writing tone—whether casual, formal, or professional. - Multi-Sample Learning
PROSE evaluates multiple examples to identify stable traits, avoiding overfitting to one sample. - Improved Over In-Context Learning
It performs up to 33% better than older models like CIPHER in writing alignment benchmarks. - On-Device Privacy Protection
Built with Apple’s privacy-first principles, your data stays secure and local. - Perfect for Emails, Memos, and Notes
Works across Apple’s ecosystem—including Mail, Notes, and third-party apps that integrate Apple Intelligence. - Auto-Switch Style for Different Contexts (in development)
Recognizes and adjusts writing tone based on audience—work, friends, or family. - Part of Apple Intelligence Roadmap
Will integrate with other AI tools announced at WWDC, including Siri upgrades and Genmoji.
🧩 Why PROSE Matters
Apple has taken a thoughtful approach to AI, focusing on customization and control. Unlike competitors offering generic writing tools, PROSE promises a deeply personal experience, letting your devices write like you—automatically.
This fits Apple’s broader push for AI integration through its on-device foundation models, a core part of Apple Intelligence set to roll out in iOS 18, iPadOS 18, and macOS Sequoia.
🌍 Industry Impact and Next Steps
- Developers will soon be able to integrate PROSE features into their apps using Apple’s new Foundation Models API.
- Consumers may see PROSE-enabled features in beta form with iOS 18’s public release in Fall 2025.
- Competitors like Google and Microsoft may follow suit with more personalized AI assistants.
🗣️ What Experts Are Saying
Reddit and X (Twitter) users are buzzing:
Meanwhile, AI researchers praise PROSE’s innovative learning method as “the future of human-AI collaboration.”
🛡️ Security and Privacy
PROSE aligns with Apple’s firm stance on privacy:
- No cloud syncing of personal writing styles.
- Profiles are stored securely on-device.
- Opt-in control for enabling or disabling learning features.
This ensures user trust—essential in a time where data privacy is under global scrutiny.
✅ Final Thoughts
The Apple PROSE AI tool is more than just a writing assistant—it’s a personal ghostwriter trained to think like you. Whether you’re a student, professional, or casual user, PROSE offers a bold step forward in making artificial intelligence genuinely human-like.
