Gradio ChatInterface's API parameter name is not named correctly

[taoari]

Describe the bug

def bot_fn(message, history, chat_model):
    return f"Echo: {message}"

For version 4.44.1, the name for API is "chat_model"

But for version 5.17.0, the name for API is "param_2"

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

import gradio as gr

Screenshot

No response

Logs

System Info

Gradio Environment Information:
------------------------------
Operating System: Darwin
gradio version: 5.17.0
gradio_client version: 1.7.1

------------------------------------------------
gradio dependencies in your environment:

aiofiles: 23.2.1
anyio: 4.8.0
audioop-lts is not installed.
fastapi: 0.115.8
ffmpy: 0.5.0
gradio-client==1.7.1 is not installed.
httpx: 0.28.1
huggingface-hub: 0.28.1
jinja2: 3.1.5
markupsafe: 2.1.5
numpy: 1.26.4
orjson: 3.10.15
packaging: 24.2
pandas: 2.2.3
pillow: 11.1.0
pydantic: 2.10.6
pydub: 0.25.1
python-multipart: 0.0.20
pyyaml: 6.0.2
ruff: 0.9.7
safehttpx: 0.1.6
semantic-version: 2.10.0
starlette: 0.45.3
tomlkit: 0.13.2
typer: 0.15.1
typing-extensions: 4.12.2
urllib3: 2.3.0
uvicorn: 0.34.0
authlib; extra == 'oauth' is not installed.
itsdangerous; extra == 'oauth' is not installed.


gradio_client dependencies in your environment:

fsspec: 2025.2.0
httpx: 0.28.1
huggingface-hub: 0.28.1
packaging: 24.2
typing-extensions: 4.12.2
websockets: 14.2

Severity

I can work around it