Update app.py

app.py

@@ -28,18 +28,8 @@ llm = Cerebras(model="llama-3.3-70b", api_key=os.environ["CEREBRAS_API_KEY"])  #
 Settings.llm = llm  # Ensure Cerebras is the LLM being used
 
 # Initialize Voyage Embedding model
-voyage_api_key = os.getenv("VOYAGE_API_KEY")
-if not voyage_api_key:
-    raise ValueError("VOYAGE_API_KEY is not set.")
-else:
-    print("Voyage API key loaded successfully.")
-
-model_name = "voyage-multimodal-3"
-embed_model = VoyageEmbedding(
-    model_name=model_name,
-    voyage_api_key=voyage_api_key,
-    truncation=True
-)
+mixedbread_api_key = os.getenv("MXBAI_API_KEY")
+embed_model = MixedbreadAIEmbedding(api_key=mixedbread_api_key, model_name="mixedbread-ai/mxbai-embed-large-v1")
 
 # Initialize Groq client for Whisper Large V3
 groq_api_key = os.getenv("GROQ_API_KEY")