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Grok 4 Fast (Non-Reasoning)

xAI Grok

ActiveReleased 2025-09-01
ChatJSON modeStreamingTool calling
256K
Context window
No
Reasoning support
Yes
Tool calling

Pricing

Input
$0.2/M
Output
$0.5/M

Shown for xAI (Grok), the primary provider surface for this model. Pricing is Cloptima's known static list pricing; live/negotiated rates may differ.

Available via 1 provider

xAI (Grok)
Gateway-routable
grok-4-fast-non-reasoning
Context
256K
Input / Output
$0.2/$0.5 per M
ChatJSON modeStreamingTool calling