Llama2-13B-Chat-GPTQ

Llama 2 is a collection of pretrained and fine-tuned generative text models ranging in scale from 7 billion to 70 billion parameters. This is the 13B fine-tuned GPTQ quantized model, optimized for dialogue use cases. Llama-2-Chat models outperform open-source chat models on most benchmarks tested, and in human evaluations for helpfulness and safety, are on par with some popular closed-source models like ChatGPT and PaLM.

Prerequisites

Git. You would need git installed on your system if you wish to customize the repo after forking.
Python>=3.8. You would need Python to customize the code in the app.py according to your needs.
Curl. You would need Curl if you want to make API calls from the terminal itself.

Quick Tutorial on "How to Deploy" on Inferless

Here is a quick start to help you get up and running with this template on Inferless.

Download the config and Create a runtime

Get started by downloading the config.yaml file and go to Inferless dashboard and create a custom runtime.

Quickly add this as a Custom runtime.

Fork the Repository

Get started by forking the repository. You can do this by clicking on the fork button in the top right corner of the repository page.

This will create a copy of the repository in your own GitHub account, allowing you to make changes and customize it according to your needs.

Import the Model in Inferless

Log in to your inferless account, select the workspace you want the model to be imported into and click the Add Model button.

Select the PyTorch as framework and choose Repo(custom code) as your model source and use the forked repo URL as the Model URL.

After the create model step, while setting the configuration for the model make sure to select the appropriate runtime.

Enter all the required details to Import your model. Refer this link for more information on model import.

The following is a sample Input and Output JSON for this model which you can use while importing this model on Inferless.

Curl Command

Following is an example of the curl command you can use to make inferences. You can find the exact curl command on the Model's API page in Inferless.

curl --location '<your_inference_url>' \
          --header 'Content-Type: application/json' \
          --header 'Authorization: Bearer <your_api_key>' \
          --data '{
    "inputs": [
      {
        "data": [
          "What is an AI?"
        ],
        "name": "prompt",
        "shape": [
          1
        ],
        "datatype": "BYTES"
      }
    ]
}'

Customizing the Code

Open the app.py file. This contains the main code for inference. It has three main functions, initialize, infer and finalize.

Initialize - This function is executed during the cold start and is used to initialize the model. If you have any custom configurations or settings that need to be applied during the initialization, make sure to add them in this function.

Infer - This function is where the inference happens. The argument to this function inputs, is a dictionary containing all the input parameters. The keys are the same as the name given in the inputs. Refer to input for more.

def infer(self, inputs):
    prompt = inputs["prompt"]

Finalize - This function is used to perform any cleanup activity for example you can unload the model from the GPU by setting self.pipe = None.

For more information refer to the Inferless docs.

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