System prompts alter layer representations in language models, with effects varying by layer and prompt type.
Read the original at arxiv.org→arXiv:2609.38205v1 Announce Type: new Abstract: System prompts are the primary lever practitioners use to control language model behavior, yet what they actually do to the computation inside the transformer remains...
Original headline: "The System Prompt Illusion: How Instruction Preambles Modify Computation in Language Models"
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- Oct 1, 04:00 UTC arXiv cs.CL lead source The System Prompt Illusion: How Instruction Preambles Modify Computation in Language Models