45 AI App Ideas Using OpenAI in 2026
45 AI App Ideas Using OpenAI in 2026 (GPT-5, Sora & Beyond) ⏱ 19 min read ⚡ Quick Answer The best AI app ideas using OpenAI in 2026 span six model families: GPT-5.5 (chatbots, writing tools, analysis and agents), Codex (coding assistants and automation), GPT Image (formerly DALL·E – design and product-image tools), Whisper & …