Allow parameterizing OpenAI embeddings component (api_base, key, model) (#1920)

* Allow parameterizing OpenAI embeddings component (api_base, key, model)

* Update settings

* Update description

Author: YevheniiSemendiak

private_gpt/components/embedding/embedding_component.py

@@ -55,8 +55,17 @@ def __init__(self, settings: Settings) -> None:
                         "OpenAI dependencies not found, install with `poetry install --extras embeddings-openai`"
                     ) from e
 
-                openai_settings = settings.openai.api_key
-                self.embedding_model = OpenAIEmbedding(api_key=openai_settings)
+                api_base = (
+                    settings.openai.embedding_api_base or settings.openai.api_base
+                )
+                api_key = settings.openai.embedding_api_key or settings.openai.api_key
+                model = settings.openai.embedding_model
+
+                self.embedding_model = OpenAIEmbedding(
+                    api_base=api_base,
+                    api_key=api_key,
+                    model=model,
+                )
             case "ollama":
                 try:
                     from llama_index.embeddings.ollama import (  # type: ignore

private_gpt/settings/settings.py

@@ -209,6 +209,15 @@ class OpenAISettings(BaseModel):
         120.0,
         description="Time elapsed until openailike server times out the request. Default is 120s. Format is float. ",
     )
+    embedding_api_base: str = Field(
+        None,
+        description="Base URL of OpenAI API. Example: 'https://api.openai.com/v1'.",
+    )
+    embedding_api_key: str
+    embedding_model: str = Field(
+        "text-embedding-ada-002",
+        description="OpenAI embedding Model to use. Example: 'text-embedding-3-large'.",
+    )
 
 
 class OllamaSettings(BaseModel):

settings.yaml

@@ -95,6 +95,7 @@ sagemaker:
 openai:
   api_key: ${OPENAI_API_KEY:}
   model: gpt-3.5-turbo
+  embedding_api_key: ${OPENAI_API_KEY:}
 
 ollama:
   llm_model: llama2