On-Device AI: What Your Phone Can Actually Run Locally
A breakdown of what on-device AI models can handle on a modern smartphone, and where they still hand off to the cloud.
What AI systems can actually do, tested against the claims.
13 articles
A breakdown of what on-device AI models can handle on a modern smartphone, and where they still hand off to the cloud.
Legacy codebases break the assumptions most AI coding assistants were trained on, and the gap shows up as soon as you leave a clean, modern repo.
Vendors call almost everything an agent now. Here's the technical line that actually separates an AI agent from an AI assistant, and how to test which one you're using.
A million tokens holds 700,000 words. Attention across them is uneven, and you pay for every one. Where long context wins and where retrieval still does.
Tests, refactors, and reproducible bugs go well. Vague specs and unwritten conventions do not. What changes when review becomes the bottleneck.
Contamination, saturation, prompt sensitivity, and averaging. Four reasons a leaderboard number tells you less than ten minutes with the test items.
AI code review tools genuinely catch real bugs before they ship, but they’re reliable for specific categories of problems and weak for others worth knowing in advance.
AI video generation has moved from a few seconds of shaky, dreamlike motion to longer, more coherent clips — but real limitations still separate it from footage.
AI image generators have gotten dramatically better at text rendering, hands, and following detailed instructions, though specific weaknesses remain.
AI hallucinations aren’t random glitches — they’re a predictable byproduct of how language models generate text, and understanding why helps you catch them.
AI models have gotten dramatically better at math, but the specific ways they still fail reveal a lot about how they actually process numbers.
AI voice cloning can now recreate a specific person’s voice from just seconds of audio — a capability that’s genuinely useful and genuinely easy to misuse.