show number of characters.

app.py

@@ -18,8 +18,10 @@ def gen_num():
 def tokens_len(prompt, model):
     encoder = tiktoken.encoding_for_model(model)
     tokens = encoder.encode(prompt)
-    return (len(tokens),
-           [(encoder.decode([token]), category) for 
+    return (
+        len(tokens), 
+        len(prompt),
+        [(encoder.decode([token]), category) for 
             token, category in zip(tokens, gen_num())])
 
 web_tokenizer = gr.Interface(
@@ -39,7 +41,8 @@ web_tokenizer = gr.Interface(
             value='gpt-4o-mini')
     ],
     outputs = [
-        gr.Number(label='Token 數量：'),
+        gr.Number(label='Tokens'),
+        gr.Number(label='Characters'),
         gr.Highlightedtext(
             label='切割結果：', 
             color_map = color_map,