On-device AI is moving from buzz to baseline on macOS and iOS. A cluster of posts spotlights apps that run entirely locally, delivering speed and privacy without cloud calls. Here are three standout examples that show edge AI finally going mainstream.
• Fuse Caption Studio — The first on-device AI captioning tool for macOS, fast, private, and incredibly accurate. No cloud uploads; everything runs on your Mac. It’s designed for video editors who want privacy and speed. [1]
• Apple On-Device OpenAI API — A local OpenAI-compatible API server on macOS that uses Apple Foundation Models; fully on-device; supports /v1/chat/completions and streaming. It’s a drop-in alternative for developers who want private, low-latency chat-style AI. Auto-checks whether Apple Intelligence is available. [2]
• My Prompt Tester — Tests Apple Intelligence prompts and instructions; history synced via iCloud; available for macOS, iOS & iPadOS; requires macOS 26 and iOS 26. Handy for tweaking prompts before plugging into apps. [3]
Edge AI is reshaping how creators work on Apple devices, putting privacy front and center and trimming cloud dependency.
References
Fuse Caption Studio - The first on-device AI captioning tool that is fast, private, and incredibly accurate.
New macOS app Fuse Caption Studio launches; on-device subtitles, privacy; giveaways; user questions on languages, karaoke, pricing, and model management.
View sourceApple On-Device OpenAI API: Run ChatGPT-style models locally via Apple Foundation Models
Mac on-device OpenAI API uses Foundation Models; local chat API; interesting but too complicated for non-devs, with pricing unclear currently.
View sourceMy Prompt Tester - to test Apple Intelligence prompts and instructions.
New app My Prompt Tester tests Apple Intelligence prompts; on-device; free; macOS, iOS, iPadOS; history synced via iCloud.
View source