xAI / Model reference

Grok 4.20 Beta 0309 Non Reasoning

Name: Grok 4.20 Beta 0309 Non Reasoning
Author: xAI

xAI model available through the Celeste SDK. Explore its supported operations and parameters.

See the code

Model IDgrok-4.20-beta-0309-non-reasoning

What it can do.

Streaming

celeste.text.generateGenerate text

Parameters.

Supported controls from Celeste’s model registry. Values and availability differ between models.

Grok 4.20 Beta 0309 Non Reasoning parameters and constraints
Parameter	Accepted values
`temperature`	0 – 2
`max_tokens`	1 – 30000
`tools`	List of tool definitions
`output_schema`	Pydantic BaseModel

Start with a few lines

Put it to work.

Use your provider credentials. Call the model through the SDK and build around its output.

import celeste
response = await celeste.text.generate(
    model="grok-4.20-beta-0309-non-reasoning",
    prompt="Write a project brief for a neighborhood repair café."
)
print(response.content)

This example uses text.generate. Explore the quickstart for installation and authentication.