grok-4

completions

Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning effort cannot be specified. Pricing increases once the total tokens in a given request is greater than 128k tokens. See more details on the [xAI docs](https://docs.x.ai/docs/models/grok-4-0709)

Input:$3 / 1M tokens•$0.75 / 1M tokenscached

Output:$15 / 1M tokens

Context:256K tokens

tools

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image

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Category Rankings

academia#1

finance#2

marketing#9

maths#2

programming#1

science#1

writing#12

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Code Example

Configuration

Base URL

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Headers

Project ID in header

X-Run-Id

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Model Parameters

11 available

include_reasoning

logprobs

max_tokens

response_format

seed

structured_outputs

temperature

012

tool_choice

tools

top_logprobs

top_p

011

Additional Configuration

Tools

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