Radio

The Radio component creates a set of radio buttons where only one option can be selected.

Basic usage

import gradio as gr

def respond(choice):
    return f"You selected: {choice}"

gr.Interface(
    fn=respond,
    inputs=gr.Radio(["Option 1", "Option 2", "Option 3"]),
    outputs=gr.Textbox()
).launch()

Constructor

Sequence[str | int | float | tuple] | None

default:"None"

List of options. Can be values or (label, value) tuples

str | int | float | Callable | None

default:"None"

Default selected option. If None, no option is selected initially

Literal['value', 'index']

default:"'value'"

Return type:

"value" - Returns selected value
"index" - Returns selected index

str | None

default:"None"

Label displayed above component

bool

default:"False"

Whether to display radio buttons right-to-left

Events

select - Triggered when option is selected
change - Triggered when selection changes
input - Triggered on input

Example

import gradio as gr

gr.Radio(
    choices=[
        ("Low (128x128)", "low"),
        ("Medium (256x256)", "medium"),
        ("High (512x512)", "high")
    ],
    value="medium",
    label="Resolution"
)

Overview

Input Components

Output Components

Layout Components

Control Components

Special Components

Basic usage

Constructor

Events

Example

​Basic usage

​Constructor

​Events

​Example

Basic usage

Constructor

Events

Example