xAI

Grok 4.3

xAI grok4-3
Model Information
Slug grok4-3
LLMs.txt View
Release Date May 6, 2026
Organization
Model Description
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual accuracy. Reasoning can be configured between none/low/medium/high (default low) effort levels.

It supports a 1 million token context window with no output token limit, making it well-suited for long-document analysis, deep research, and multi-step agentic tasks. Pricing is tiered: requests exceeding 200k total tokens are billed at a higher rate.
Available at 41 Providers
Provider Type Model Name Original Model Input ($/1M) Output ($/1M) Free Actions
TokenReply
TokenReply
Chat Code
grok-4.3
grok-4.3 $0.00 $0.00
CometAPI
CometAPI
Grok 4.3
grok-4.3 $1.00 $2.00
Routeway
Routeway
xAI: Grok 4.3
grok-4.3 $1.19 $2.38
Cline
Cline
Code
xAI: Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
Kilo Code
Kilo Code
Code
xAI: Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
Nano-GPT
Nano-GPT
Chat Code
Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
Nous Research
Nous Research
xAI: Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
OpenRouter
OpenRouter
Chat Code
Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
AIHubMix
AIHubMix
Chat Code
grok-4.3
grok-4.3 $1.25 $2.50
xAI
xAI
Grok 4.3
grok-4.3 $1.25 $2.50
Requesty
Requesty
xai/grok-4.3 $1.25 $2.50
ZenMUX
ZenMUX
Chat Code
xAI: Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
Firmware
Firmware
Grok 4.3
grok-4-3 $1.25 $2.50
FastRouter
FastRouter
xAI: Grok 4.3
x-ai/grok-4.3 $1.25 $2.50
Cursor
Cursor
Code
Grok 4.3 1M
grok-4.3 $1.25 $2.50
FrogBot
FrogBot
Grok 4.3
grok-4-3 $1.25 $2.50
LLM Stats
LLM Stats
Chat
Grok 4.3
grok-4.3 $1.25 $2.50
302.AI
302.AI
grok-4.3
grok-4.3 $1.25 $2.50
LLM Gateway
LLM Gateway
Grok 4.3
grok-4-3 $1.25 $2.50
MegaNova
MegaNova
Chat
Grok-4.3
x-ai/grok-4.3 $1.25 $2.50
Auriko
Auriko
Grok 4.3
grok-4.3 $1.25 $2.50
OrcaRouter
OrcaRouter
grok/grok-4.3 $1.25 $2.50
WaveSpeed AI
WaveSpeed AI
Chat Code
grok-4.3
x-ai/grok-4.3 $1.25 $2.50
Mammouth AI
Mammouth AI
Chat
grok-4.3
grok-4.3 $1.25 $2.50
Atlas Cloud
Atlas Cloud
Grok 4.3
xai/grok-4.3 $1.25 $2.50
Vercel AI Gateway
Vercel AI Gateway
Grok 4.3
xai/grok-4.3 $1.25 $2.50
Poe
Poe
Grok-4.3
grok-4.3 $1.26 $2.53
Venice
Venice
Grok 4.3
grok-4-3 $1.42 $2.83
AIMLAPI
AIMLAPI
Grok 4.3
x-ai/grok-4-3 $3.25 $6.50
Arena AI
Arena AI
Chat
grok-4.3 - -
Krater
Krater
xAI: Grok 4.3
grok-4-3 - -
NavyAI
NavyAI
Chat Code
xai
grok-4.3 - -
ApiYI
ApiYI
Chat Code
grok-4.3
grok-4.3 - -
RouterLink
RouterLink
Grok 4.3
Grok 4.3 - -
Junie
Junie
Code
grok-4.3
grok-4.3 - -
ValorGPT
ValorGPT
Grok 4.3
x-ai-grok-4.3 - -
JetBrains AI
JetBrains AI
Code
Grok-4.3
Grok-4.3 - -
AnyAPI
AnyAPI
Grok 4.3
xai/grok-4.3 - -
Blackbox AI
Blackbox AI
Code
blackboxai/x-ai/grok-4.3
blackboxai/x-ai/grok-4.3 - -
Writingmate
Writingmate
Chat Code
xAI: Grok 4.3
x-ai/grok-4.3 - -
Airforce API
Airforce API
grok-4.3
grok-4.3 - -