diff --git a/haiku_rag_slim/haiku/rag/chat/__init__.py b/haiku_rag_slim/haiku/rag/chat/__init__.py
index d635c10d..981eb295 100644
--- a/haiku_rag_slim/haiku/rag/chat/__init__.py
+++ b/haiku_rag_slim/haiku/rag/chat/__init__.py
@@ -26,13 +26,19 @@ def run_chat(
         ) from e
 
     from haiku.rag.config import get_config
-    from haiku.rag.utils import get_model
+    from haiku.rag.utils import get_model, parse_model_option
     from haiku.skills.models import Skill
 
     config = get_config()
     if db_path is None:
         db_path = config.storage.data_dir / "haiku.rag.lancedb"
 
+    if model:
+        model_config = parse_model_option(model)
+        config.qa.model = model_config
+        config.research.model = model_config
+        config.analysis.model = model_config
+
     enabled = skills or ["rag"]
     skill_list: list[Skill] = []