GPT-5 Officially Released: Where Does OpenAI's "Strongest Model" Excel?

OpenAI has officially launched GPT-5, surpassing GPT-4o in reasoning, coding, and multimodal capabilities. GPT-5 introduces two core features: "persistent memory" and "multi-step reasoning," enabling it to remember user preferences across sessions and autonomously plan complex multi-step tasks. This article compares GPT-5's real-world performance against Claude Opus 4 and Gemini 2.0 Ultra, analyzes which users and tasks benefit the most, and discusses the impact of API pricing changes on enterprise users.