Grok 4.5 (Fast)

Name: Grok 4.5 (Fast)
Author: Cursor

Input price

$4/1M tokens

Output price

$18/1M tokens

Capabilities

Show unsupported (6)

Reasoning & Interaction

Reasoning

Infrastructure

Streaming

Model IDgrok-4.5-fast

ProviderCursor

Creatorcursor

License—

Status—

Typechat

Input modalitiestext

Output modalitiestext

Open weight—

Parameters—

Architecture—

Context window—

Max input—

Max output—

Reasoning tokens—

Knowledge cutoff—

Release date—

Sourceofficial

Input

Output

$18

Cache write

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Cache read

Batch in

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Batch out

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Jointly trained by Cursor and SpaceXAI

Model	Caps	Perf	Speed	Context	Max out	Pricing
Grok 4.5	RTS			256K	—	$2$6
Grok 4.5 (Fast)	RS	—	—	—	—	$4$18

GET/v1/models/cursor/grok-4.5-fast