How to Use ChatGPT Effectively in 2026: The Complete Playbook
On May 5, 2026, OpenAI made GPT-5.5 Instant the default model for every ChatGPT user, replacing GPT-5.3 Instant overnight. The new model scores 81.2 on AIME 2025 (versus 65.4 for its predecessor), and OpenAI says it reduces hallucinations in law, medicine, and finance while keeping the same low latency. Yet most people are still using […]
