diff --git a/README.md b/README.md
index 74e6621..bee0731 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,9 @@ Currently support 30s for a single generation, which is the **TOTAL** length of
 
 Either you can specify everything in `inference-cli.toml` or override with flags. Leave `--ref_text ""` will have ASR model transcribe the reference audio automatically (use extra GPU memory). If encounter network error, consider use local ckpt, just set `ckpt_path` in `inference-cli.py`
 
+for change model use --ckpt_file to specify the model you want to load,  
+for change vocab.txt use --vocab_file to provide your vocab.txt file.
+
 ```bash
 python inference-cli.py \
 --model "F5-TTS" \