GPTExpress

GPTExpress puts the world's best AI models in one beautiful app. Switch instantly between GPT-5, GPT-4o, Claude (Opus, Sonnet, Haiku), and Google Gemini — no subscriptions, no juggling apps. Pay only for what you actually use. • Every top model, one tap away — pick the right brain for the job, switch mid-conversation. • Real-time voice calls — talk to AI naturally with low-latency voice. • Analyze anything — attach images, PDFs, and text/code files and ask about them. • Generate images — create with GPT Image, Nano Banana, and Nano Banana Pro. • Pay as you go — top up credits, spend only on what you use. No monthly lock-in. • Private & simple — passwordless email sign-in. Get answers, ideas, code, and conversations from the best AI — all in one place.