grok-4.3

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

Provider xAI
Creator xai
Familygrok-4.3
Licenseproprietary
Statusactive
Typechat
Input modalitiestext, image
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
—

Base rate applies < 200k prompt tokens.

≥ 200k prompt tokens: $2.5 input / $5 output per 1M tokens.

API

GET/v1/models/xai/grok-4.3

grok-4.3

Changes · 4 entries
grok-4.3updateca7a400Nov 2, 2026, 03:02 AM
page_urlhttps://docs.x.ai/developers/models/grok-4.3→https://docs.x.ai/developers/models
statusactive
pricing_notes["Base rate applies < 200k prompt tokens.","≥ 200k prompt...
grok-4.3updatec67ed84Jul 31, 2026, 10:28 AM
page_urlhttps://docs.x.ai/developers/models/grok-4.3→https://docs.x.ai/developers/models
statusdeprecated→active
pricing_notes["Base rate applies < 200k prompt tokens.","≥ 200k prompt...
grok-4.3updatebf78dcfJul 25, 2026, 05:49 AM
statusdeprecated
grok-4.3createbc0fb7dMay 2, 2026, 02:14 AM