If you’ve ever tried to load a monster CSV into Google Sheets or run it through your favorite AI model, you know the feeling: This week, our web webster decided that it was no longer acceptable. He had an 832,000-row CSV to analyze and zero interest in playing “guess which rows matter” with his data. The solution he landed on isn’t just clever—it’s a genuine game-changer for anyone working with large-scale datasets and AI.

After putting GPT-5 Pro through its paces this week, we stumbled on something that completely changes how you should be feeding it web-based context. It’s not about prompt creativity. It’s not about which model variant you pick. It’s about understanding how this thing actually processes information behind the scenes—and the limits it hits when you overload it.