I don't have a prompt per-say.. but recently I have managed to ask certain questions of both openai o1/o3 and claude extended thinking 3.7 that have spiraled way out of control. A simple high-level architecture question with an emphasis on do not produce code lets just talk thru this yields nearly 1,000 lines of SQL. Once the conversation/context gets quite long it is more likely to occur, in my experience.

The only model I've seen so far that doesn't end up going crazy with long contexts with Gemini 2.5 pro, but tbf I haven't gone past 700-750k total tokens so maybe as it starts to approach the limit (1.05M) things get hairy?