There are an increasingly large number of ways to build RAG chat apps.
Inspired by this repo, there are similar apps for other languages:
They do not all support the same features as this repo, but they provide a good starting point for building a RAG chat app in your preferred language.
Another popular repository for this use case is here: https://github.com/Microsoft/sample-app-aoai-chatGPT/
That repository is designed for use by customers using Azure OpenAI studio and Azure Portal for setup. It also includes azd support for folks who want to deploy it completely from scratch.
The primary differences:
- This repository includes multiple RAG (retrieval-augmented generation) approaches that chain the results of multiple API calls (to Azure OpenAI and ACS) together in different ways. The other repository uses only the built-in data sources option for the ChatCompletions API, which uses a RAG approach on the specified ACS index. That should work for most uses, but if you needed more flexibility, this sample may be a better option.
- This repository is also a bit more experimental in other ways, since it's not tied to the Azure OpenAI Studio like the other repository.
Feature comparison:
| Feature | azure-search-openai-demo | sample-app-aoai-chatGPT |
|---|---|---|
| RAG approach | Multiple approaches | Only via ChatCompletion API data_sources |
| Vector support | ✅ Yes | ✅ Yes |
| Data ingestion | ✅ Yes (Many formats) | ✅ Yes (Many formats) |
| Persistent chat history | ✅ Yes | ✅ Yes |
| User feedback | ❌ No | ✅ Yes |
| GPT-4-vision | ✅ Yes | ❌ No |
| Auth + ACL | ✅ Yes | ✅ Yes |
| User upload | ✅ Yes | ❌ No |
| Speech I/O | ✅ Yes | ❌ No |
Technology comparison:
| Tech | azure-search-openai-demo | sample-app-aoai-chatGPT |
|---|---|---|
| Frontend | React | React |
| Backend | Python (Quart) | Python (Quart) |
| Vector DB | Azure AI Search | Azure AI Search, CosmosDB Mongo vCore, ElasticSearch, Pinecone, AzureML |
| Deployment | Azure Developer CLI (azd) | Azure Portal, az, azd |