grok-4

Capabilities

Show unsupported (6)

Reasoning & Interaction

Tool Calling

Infrastructure

Streaming

Details

ProviderAzure AI Foundry

CreatorxAI

Familygrok-4

License—

Status—

Typechat

Input modalitiestext

Output modalitiestext

Open weight—

Parameters—

Architecture—

Context window—

Max input—

Max output—

Reasoning tokens—

Knowledge cutoff—

Release date—

Sourceofficial

Tools

Function Callingfunction_calling

Call external functions and APIs

Family Comparison: grok-4

Model	Caps	Perf	Speed	Context	Max out
grok-4-20-non-reasoning Preview	RTS	—	—	—	—
grok-4-20-reasoning Preview	RTS	—	—	—	—
grok-4-fast-non-reasoning Preview	RTJJMSB	—	—	2M	—
grok-4-fast-reasoning Preview	RTJJMSB	—	—	2M	—
grok-4	TS	—	—	—	—

API

GET/v1/models/azure/grok-4

grok-4

Changes · 2 entries

grok-4update2b100acMar 23, 2026, 05:30 AM

model_typechat

tools["function_calling"]

grok-4create7f5c66fMar 21, 2026, 05:16 AM