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Updated 10 months ago

how to set prompt template for Microsoft phi-2 model and how to pass to llamacpp

@kapa.ai how to set prompt template for Microsoft phi-2 model and how to pass to llamacpp
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To set a prompt template for a model like Microsoft's phi-2, you can use the PromptTemplate class from the llama_index.core module. Here's an example of how to define a custom prompt:

Plain Text
from llama_index.core import PromptTemplate

template = (
    "We have provided context information below. \n"
    "---------------------\n"
    "{context_str}"
    "\n---------------------\n"
    "Given this information, please answer the question: {query_str}\n"
)
qa_template = PromptTemplate(template)

# you can create text prompt (for completion API)
prompt = qa_template.format(context_str=..., query_str=...)

# or easily convert to message prompts (for chat API)
messages = qa_template.format_messages(context_str=..., query_str=...)

(Source: LlamaIndex Documentation ())

To pass this to LlamaCPP, you would use the messages_to_prompt and completion_to_prompt parameters when initializing the LlamaCPP model. Here's an example:

Plain Text
from llama_index.llms.llama_cpp import LlamaCPP

llm = LlamaCPP(
    model_url=model_url,
    model_path=None,
    temperature=0.1,
    max_new_tokens=256,
    context_window=3900,
    generate_kwargs={},
    model_kwargs={"n_gpu_layers": 1},
    messages_to_prompt=messages_to_prompt,  # pass your prompt here
    completion_to_prompt=completion_to_prompt,  # pass your prompt here
    verbose=True,
)

(Source: LlamaIndex GitHub ())
Please note that the messages_to_prompt and completion_to_prompt functions should be defined to format the model inputs. The exact implementation of these functions would depend on the specific requirements of the Microsoft phi-2 model.
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@kapa.ai I want to use phi 2 model in chat engine . Give me message to prompt or completion prompt for Microsoft phi 2 model
Let me check the knowledge base for you. One moment! :books:
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I'm sorry, but the provided extracts do not contain specific information on how to set a message to prompt or completion prompt for the Microsoft phi-2 model in a chat engine using LlamaIndex. The extracts provide general information on how to use prompts with LlamaIndex and how to use LlamaIndex with different models, but they do not provide specific instructions for the Microsoft phi-2 model.

For more detailed information, you may want to refer to the LlamaIndex Documentation () or the LlamaIndex GitHub page ().
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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