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POST
Grok Quick Response (All Models)
BaseURL: The default BaseURL is https://direct.evolink.ai, which has better support for text models and long-lived connections. https://api.evolink.ai is the primary endpoint for multimodal services and serves as a fallback address for text models.

Authorizations

Authorization
string
header
required

##All APIs require Bearer Token authentication##

Get API Key:

Visit API Key Management Page to get your API Key

Add to request header:

Body

application/json
model
enum<string>
required

Model to call:

Available options:
grok-4.5
Example:

"grok-4.5"

input
string
required

Input text for the model

Example:

"Explain what makes Grok 4.5 different in two sentences."

Response

Response generated successfully

id
string

Unique identifier for the response

Example:

"55d44212-8d5e-90cc-975f-36d341ce21f5"

object
enum<string>

Response type

Available options:
response
Example:

"response"

status
enum<string>

Response status

Available options:
completed,
incomplete,
failed
Example:

"completed"

model
string

Model name actually used

Example:

"grok-4.5"

created_at
integer

Creation timestamp

Example:

1786538000

output
object[]

Output items. Grok reasoning models typically return reasoning items (summarized thinking) followed by a message item with the final answer.

usage
object

Token usage statistics. Prompts of 200K tokens or more are billed at 2x for all token types.