Re:Changes in the system prompt between Claude Opus 4.6 and 4.7
by aesthesia on Sunday April 19, 2026 @10:04PM
(#47829559)
Leaked/extracted system prompts for other chat models, particularly ChatGPT, are often around this size. Here's GPT-5.4: https://github.com/asgeirtj/system_prompts_leaks/blob/main/O...
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Re:Changes in the system prompt between Claude Opus 4.6 and 4.7
by sigmoid10 on Monday April 20, 2026 @03:20AM
(#47831278)
Thanks, but that kind of confirms my belief. wc counts ~15k words in there. That may technically be the same order of magnitude, but it is only a quarter of Claude's and less than 2% of the context limit. So a lot more steering is baked into the model weights than into the prompt compared to Claude.