Grok 4.3

Context
1M

Capabilities

Reasoning & Interaction
Reasoning
Infrastructure
Streaming

Details

Model IDxai.grok-4.3
Provider Amazon Bedrock
Creator xAI
Family—
License—
Status—
Typechat
Input modalitiesimage, text
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window1M tokens
Max input—
Max output—
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

API

GET/v1/models/amazon/xai.grok-4.3

Grok 4.3

xai.grok-4.3
Changes · 2 entries
xai.grok-4.3createca7a400Nov 2, 2026, 03:02 AM
xai.grok-4.3createab879c8Jun 18, 2026, 08:32 AM