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Add user-assistant chat format #1281

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Add user-assistant chat format #1281

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17 changes: 17 additions & 0 deletions llama_cpp/llama_chat_format.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1037,6 +1037,23 @@ def format_gemma(
return ChatFormatterResponse(prompt=_prompt, stop=_sep)


# Chat format for Nous-Capybara models, see more details:
# https://huggingface.co/NousResearch/Nous-Capybara-34B
@register_chat_format("user-assistant")
def format_user_assistant(
messages: List[llama_types.ChatCompletionRequestMessage],
**kwargs: Any,
) -> ChatFormatterResponse:
stop_str = "</s>"
system_message = _get_system_message(messages)
_roles = dict(user="USER:", assistant="ASSISTANT:")
_sep = "\n"
_messages = _map_roles(messages, _roles)
_messages.append((_roles["assistant"], None))
_prompt = _format_chatml(system_message, _messages, _sep)
return ChatFormatterResponse(prompt=_prompt, stop=stop_str)


# Tricky chat formats that require custom chat handlers


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