GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search

GPT-5's “thinking” model just leveled up. It's not just answering queries—it’s doing full-on research. Picture deep, multi-step Bing searches mixed with tool use and reasoning chains. It reads PDFs. Analyzes them. Suggests what to do next. Then actually does it. All from your phone.

What’s changing: LLM-powered search is moving fast—from reactive Q&A bots to proactive research agents that blend retrieval, reasoning, and tool use like they mean it.