1AI: AI Chatbot & Writer is a mobile AI assistant that combines many leading models in one app, including GPT-5, o4-mini, GPT-4o, Claude 4.5, Gemini 3, and more. Instead of paying for multiple subscriptions, you can access 250+ AI models through a single interface on iPhone and iPad.
Chat, writing, and editing
Use 1AI for everyday text work—from quick messages to longer documents.
- Draft and rewrite emails, posts, articles, and essays
- Improve clarity, tone, and structure
- Check grammar and style
- Generate ideas, outlines, and content plans
Research, learning, and productivity
1AI can help you process information faster and understand complex topics.
- Find and summarize long materials
- Create study notes and concise briefs
- Explain difficult concepts in plain language
Text-to-image generation
In addition to text, 1AI supports generating images from prompts.
- Create quick visual concepts and illustrations
- Produce visuals for posts and presentations without switching apps
The app supports multiple languages, is free to download, and offers optional in-app purchases.
