Update app.py

app.py

@@ -31,9 +31,9 @@ os.makedirs(FIGURES_DIR, exist_ok=True)
 
 # ── Models & Clients ───────────────────────────────────────────────────────────
 # Chat model (Mistral-7B-Instruct)
-chat_client = InferenceClient(model="mistralai/Mistral-7B-Instruct-v0.3")
+chat_client = InferenceClient(model="google/gemma-3-27b-pt")
 # Text embeddings (BAAI BGE)
-embeddings = HuggingFaceEmbeddings(model_name="BAAI/bge-base-en-v1.5")
+embeddings = HuggingFaceEmbeddings(model_name="nomic-ai/colnomic-embed-multimodal-7b")
 # Image captioning (BLIP)
 blip_processor = BlipProcessor.from_pretrained("Salesforce/blip-image-captioning-base")
 blip_model = BlipForConditionalGeneration.from_pretrained("Salesforce/blip-image-captioning-base")