Try using tftransformers/bert-base-cased

Author: cpsievert

shiny/ui/_chat_tokenizer.py

@@ -49,7 +49,7 @@ def get_default_tokenizer() -> TokenizersTokenizer | None:
     try:
         from tokenizers import Tokenizer
 
-        return Tokenizer.from_pretrained("bert-base-cased")  # type: ignore
+        return Tokenizer.from_pretrained("tftransformers/bert-base-cased")  # type: ignore
     except Exception:
         pass