Do not ignore explicitly passed 4 threads

gpt4all-bindings/cli/app.py

@@ -51,12 +51,12 @@ def repl(
     n_threads: Annotated[
         int,
         typer.Option("--n-threads", "-t", help="Number of threads to use for chatbot"),
-    ] = 4,
+    ] = None,
 ):
     gpt4all_instance = GPT4All(model)
 
     # if threads are passed, set them
-    if n_threads != 4:
+    if n_threads is not None:
         num_threads = gpt4all_instance.model.thread_count()
         print(f"\nAdjusted: {num_threads} →", end="")
 
@@ -65,7 +65,8 @@ def repl(
 
         num_threads = gpt4all_instance.model.thread_count()
         print(f" {num_threads} threads", end="", flush=True)
-
+    else:
+        print(f"\nUsing {gpt4all_instance.model.thread_count()} threads", end="")
 
     # overwrite _response_callback on model
     gpt4all_instance.model._response_callback = _cli_override_response_callback