How to Use the ONNX Quantized Version of the BlenderBot

Dec 28, 2022 | Educational

If you’re looking to leverage the power of the ONNX quantized version of the Facebook BlenderBot small (90M) model for faster CPU inference, you’ve come to the right place. In this guide, we will walk you through the steps to download, set up, and make use of the BlenderBot model for text generation.

Getting Started

Before diving into the coding aspect, you’ll need to prepare your environment. Here are the prerequisites:

  • Download the blender_model.py script from the repository files.
  • Install the ONNX Runtime library by running the following command:
  • pip install onnxruntime

Usage

Now that you’re all set up, let’s take a look at how to use the model for generating text. There are a couple of methods you can use:

Method 1: Using the Text Generation Pipeline

In this method, we will leverage the text generation pipeline from the Blender model:

from blender_model import TextGenerationPipeline

max_answer_length = 100
response_generator_pipe = TextGenerationPipeline(max_length=max_answer_length)
utterance = "Hello, how are you?"
response_generator_pipe(utterance)

Method 2: Directly Calling the Model

This method involves using the OnnxBlender directly which gives you more control:

from blender_model import OnnxBlender
from transformers import BlenderbotSmallTokenizer

original_repo_id = "facebook/blenderbot_small-90M"
repo_id = "remzicam/xs_blenderbot_onnx"
model_file_names = [
    "blenderbot_small-90M-encoder-quantized.onnx",
    "blenderbot_small-90M-decoder-quantized.onnx",
    "blenderbot_small-90M-init-decoder-quantized.onnx",
]
model = OnnxBlender(original_repo_id, repo_id, model_file_names)
utterance = "Hello, how are you?"

inputs = tokenizer(utterance, return_tensors="pt")
outputs = model.generate(**inputs, max_length=max_answer_length)
response = tokenizer.decode(outputs[0], skip_special_tokens=True)
print(response)

Understanding the Code with an Analogy

Think of using this model like preparing a gourmet meal by following a recipe. Let’s break it down:

  • The blender_model.py script is your recipe book, providing the necessary instructions.
  • Installing ONNX Runtime is like gathering all your ingredients; it’s essential for cooking up your model.
  • The Text Generation Pipeline is the first method of cooking using a tried-and-true method—like following a simple stir-fry recipe.
  • The OnnxBlender represents a more sophisticated cooking approach, where you have individual control over each ingredient (model component) for tailored results.
  • Finally, your input utterance is the main ingredient you’re cooking with; the response generated is the delectable dish ready to be served!

Troubleshooting

If you run into issues while utilizing the model, here are some troubleshooting ideas:

  • Error: ImportError – Ensure that blender_model.py is correctly downloaded and is in your current directory.
  • Error: ModuleNotFoundError – Double-check that you have installed ONNX Runtime properly using pip.
  • Unexpected Outputs – Inspect the input utterance for clarity. Ambiguous inputs can yield unexpected conversational turns.
  • If you continue to face difficulties, feel free to reach out for support. For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

With the above steps, you should now be well-equipped to use the ONNX quantized version of BlenderBot for text generation. The transition to using models like this can greatly enhance your applications with faster inference times.

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

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