The best AI chat app in 2026 isn't the one with the best single model — it's the one that doesn't make you choose. Models leapfrog each other every few weeks: the strongest coder today may be third-best next month. CoreAI solves this by putting 300+ AI models in one app for iPhone, Android, and web.
What Makes a Great AI Chat App
Model choice. A dedicated app for one provider gives you that provider's strengths and inherits all its weaknesses. An aggregator app lets you pick the model per task — reasoning models for math, fast cheap models for chit-chat, vision models for images.
Real comparison. Benchmarks don't tell you which model writes better emails for you. CoreAI's Compare feature sends one prompt to multiple models simultaneously and shows the answers side by side.
Cross-device sync. Start a conversation on your phone, continue in the browser at your desk. CoreAI syncs history, custom instructions, and account memory across every device.
Honest pricing. Subscribing separately to two or three AI services costs $40-60/month. One CoreAI subscription covers every model in the catalog, with plans from free to power-user tiers.
iPhone, Android, and Web
CoreAI ships as a native app on iOS and Android and as a full web app — same account, same history, same models. The mobile app adds voice input, image attachments, scheduled AI tasks, and 33 built-in AI tools for study, writing, and productivity.
Beyond Chat
A modern AI app is more than a chat box: CoreAI includes AI image generation, live web-search models for current information, document scanning, and translation — all under the same subscription.