Notes from the GO AI team
We ship GPT-5, Gemini, Grok 4, and DeepSeek in one iOS app — and use them all day, every day. These are our hands-on guides, honest comparisons, and things we learned building AI apps.
AI video generation
The Best AI Video Generator Apps for iPhone in 2026 — Tested
What actually works on a phone: multi-model apps, provider apps, and social-first tools compared by people who generate clips daily.
How to Generate an AI Video on iPhone in Under a Minute
Step-by-step: from a one-line description or a photo to a shareable 15-second clip, plus the prompt patterns that produce good motion.
Generating Video with Grok: a Hands-On Guide
Where Grok's video model fits, how to prompt it so the motion works, and the failure modes worth knowing before you burn a generation.
AI models, compared
Grok 4 vs GPT-5: We Use Both Every Day — Here's When Each Wins
No benchmark theater. Where each model is the right pick for writing, coding, news, voice, and media — from daily side-by-side use.
Which AI Model for Which Task? A Practical Cheat Sheet
GPT-5, Gemini, Grok 4, or DeepSeek — one table that tells you which to pick for the thing you're doing right now.
Why Pay for 4 AI Subscriptions? Multi-Model Apps Explained
The real trade-offs of aggregator apps — cost, mid-thread switching, and the feature lag nobody mentions. Including when you should subscribe direct instead.
GPT-5 vs Gemini: Strengths by Task
GPT-5 holds structure and instructions; Gemini swallows long documents whole. A task-by-task split from running both every day.
Image generation
Guides & explainers
Custom System Prompts: Make Any Model Act Like Your Assistant
The anatomy of a good system prompt, six copy-paste templates, and the mistakes that quietly ruin your results.
What Is MCP? Model Context Protocol in Plain English
Why every AI assistant suddenly speaks the same tool language, how it works under the hood, and where GO AI fits in.
Nutrition & calories
Can AI Count Calories from a Photo? How It Works and Where It's Wrong
What photo estimation really does, the four things that break it, and how to shoot a meal so the answer comes back closer.
Calorie Deficit, Explained Like a Human
What a deficit really is, why the scale lies for days at a time, how big it should be, and the four reasons people think theirs isn't working.
Plant care
How Plant ID by Photo Works — and When It Fails
What an identifier is really matching on, the photos that make it reliable, and the plants where a confident answer still deserves a second look.
Yellow Leaves: the Decision Tree (Water, Light, Roots, or Age)
Which leaves, where on the plant, and how fast. Three questions that separate overwatering from light, nutrients, root problems, and ordinary ageing.