[Frontend] OpenAI API server: Add add_special_tokens to ChatCompletionRequest (default False)#5278
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simon-mo merged 3 commits intovllm-project:mainfrom Jun 5, 2024
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DarkLight1337
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LGTM, thanks for making it configurable! |
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#4688 introduced a change to how messages are formatted into a prompt for the chat endpoint - the prompt is tokenized with
add_special_tokens=Falseso a BOS token is not added. It is assumed that the chat template takes care of adding all needed special tokens.This PR aims to make this behavior configurable instead of hardcoded. By adding
add_special_tokensas a field toChatCompletionRequest, the user can control whether a BOS token should be added or not. This is useful because not all chat templates add the BOS token.