[mtricot]

When reading the tutorial, we are describing one stack to build a specific app. But the stack is made of building blocks that you can replace with others if you need to.

- Airbyte has two self-hosted options: OSS & Enterprise

- Langchain: OSS

- OpenAI: you can host an OSS model if you want to

- Pinecone: there are OSS/self-hosted alternatives

[samspenc]

> - OpenAI: you can host an OSS model if you want to

Just to confirm: you mean models like Facebook's Llama 2 and variants right? Since OpenAI hasn't released any OSS models.

[mtricot]

correct

[zarazas]

What about the embedding?