OpenAI introduces GPT-5

"GPT-5 was designed as a unified system with a main model for most questions, a deeper reasoning model called GPT-5 thinking for harder problems, and a real-time router to decide which to use based on conversation type, complexity, tool needs, and explicit user intent. The router was continuously trained on real-world usage signals, such as when users switched models or rated responses, and improved over time."

"GPT-5 outperformed earlier models on benchmarks, reduced hallucinations, improved instruction following, and minimized sycophancy. It excelled in three major areas of ChatGPT usage: writing, coding, and health. In coding, it became the strongest model yet, showing major improvements in complex front-end generation and debugging large repositories. It could design aesthetically pleasing websites, apps, and games from a single prompt, demonstrating better understanding of design elements such as spacing, typography, and white space."

GPT-5 functions as a unified AI system that selects between a main model and a deeper reasoning model called GPT-5 thinking, using a real-time router that evaluates conversation type, complexity, tool needs, and explicit user intent. The router trains continuously on real-world signals like model switches and user ratings, with mini versions handling queries when limits are reached. GPT-5 outperforms earlier models on benchmarks, reduces hallucinations, follows instructions better, and minimizes sycophancy. The model shows state-of-the-art performance in coding, math, writing, health, and visual perception, including complex front-end generation, debugging large repositories, and designing polished interfaces from single prompts. Availability includes more usage for Plus subscribers and GPT-5 Pro for extended reasoning to Pro subscribers, with plans to integrate all capabilities into one model.

Read at App Developer Magazine