In the world of AI and natural language processing, working with optimal performance models is paramount. The Phi-3 Mini-4K-Instruct ONNX model is one such model designed for efficiency and flexibility. This guide will walk you step-by-step through the process of using this model in your applications with the ONNX Runtime-Web.
What You Need
- Basic understanding of JavaScript and AI models
- Node.js installed on your machine
- Access to a browser with support for caching below 2GB
Setting Up the Phi-3 Mini-4K-Instruct ONNX Model
Before you dive into the coding, let’s clarify the enhancements incorporated in the Phi-3 model for ONNX Runtime-Web:
- The model is formatted as fp16 with int4 block quantization for optimized performance.
- Logits output utilizes fp32 precision.
- Utilizes Multi-Head Attention (MHA) instead of Graph Query Attention (GQA).
- The combined size of ONNX and external data files must remain under 2GB for caching in Chromium browsers.
Step-by-Step Implementation
Here’s how you can implement and run the Phi-3 Mini-4K-Instruct ONNX model:
1. Download the Model
Access the model using the following link: official phi3 onnx model. Ensure that you have the model set up correctly in your local directory.
2. Install ONNX Runtime-Web
To start, incorporate the ONNX Runtime-Web library into your project using npm:
npm install onnxruntime-web
3. Load the Model
Now, you need to load the model in your JavaScript code:
const ort = require('onnxruntime-web');
const modelPath = 'path/to/phi3_model.onnx';
async function loadModel() {
const session = await ort.InferenceSession.create(modelPath);
return session;
}
4. Prepare Input Data
The data you input must be compatible with the model’s expectations. Ensure it’s properly formatted to match the processing needs.
5. Run Inference
To obtain predictions, run inference with the loaded model:
async function runInference(session, inputData) {
const feeds = { inputName: inputData }; // Customize inputName as per your model specs
const output = await session.run(feeds);
return output;
}
Understanding the Process Through Analogy
Think of the model as a well-trained chef in a kitchen. The kitchen (ONNX Runtime-Web) is where the chef prepares meals (predictions) based on the ingredients provided (input data). The chef uses specific tools (model architecture) and only works with ingredients that fit the recipe (input format). Just like how a chef performs better in an organized environment, the model utilizes its architecture for efficient performance, ensuring delightful outcomes.
Troubleshooting Common Issues
When you dive into using the Phi-3 model, you might encounter a few bumps along the way. Here are some handy troubleshooting tips:
- If you receive an “Out of Memory” error, ensure your model and data files are under the required 2GB limit.
- Check that your input data is formatted correctly; incorrect input can lead to unexpected results or errors.
- If you experience slow performance, consider optimizing your code or exploring system resources.
For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.
Conclusion
Utilizing the Phi-3 Mini-4K-Instruct ONNX model with ONNX Runtime-Web can significantly enhance your NLP applications’ efficiency and capabilities. Set up your environment correctly, format your data properly, and overcome any hurdles with the guidance provided here.
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.

