grok-4.3 Preview

proprietary
Context
1M
Input price
$1.25/1M tokens
Output price
$2.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDgrok-4.3
Creator xAI
Familygrok-4.3
Licenseproprietary
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window1M tokens
Max input—
Max output—
Reasoning tokensYes
Knowledge cutoff
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$1.25
Output
$2.5
Cache write
—
Cache read
$0.2
Batch in
—
Batch out
—

API

GET/v1/models/azure/grok-4.3

grok-4.3 Preview

grok-4.3
Changes · 2 entries
grok-4.3createca7a400Nov 2, 2026, 03:02 AM
grok-4.3created9ddd19May 14, 2026, 07:26 AM