diff --git a/scripts/physton_prompt/get_token_counter.py b/scripts/physton_prompt/get_token_counter.py
index 0080284..fb40117 100644
--- a/scripts/physton_prompt/get_token_counter.py
+++ b/scripts/physton_prompt/get_token_counter.py
@@ -27,6 +27,10 @@ def get_token_counter(text, steps):
     prompts = [prompt_text for step, prompt_text in flat_prompts]
 
     if forge:
+        # Check if the model is fully loaded to prevent TypeError during model switching
+        if sd_models.model_data.sd_model is None:
+            return {"token_count": 0, "max_length": 0}
+
         cond_stage_model = sd_models.model_data.sd_model.cond_stage_model
         token_count, max_length = max([model_hijack.get_prompt_lengths(prompt,cond_stage_model) for prompt in prompts],
                                       key=lambda args: args[0])