Re:Transformer Attention is off by one
by sp332 on Monday July 24, 2023 @03:04PM
(#36852838)
Chat-tuned ones do, but the base models don't. For example, Llama doesn't, but Alpaca has "### Instruction:", "### Input:", and "### Response:".
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Base LLaMA still has dedicated tokens for beginning/end of string. What you're describing is the instruction format, which is separate.