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Grok 4.3

Name: Grok 4.3
Author: xAI

by xAI

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 requir

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Grok 4.3

Added 10 July 2026

#x-ai

Overview

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...

How to use / API access

Call via OpenRouter with model id `x-ai/grok-4.3`.

openrouter · x-ai/grok-4.3 Docs

OpenRouter id: x-ai/grok-4.3

Benchmarks

Intelligence Index (artificial-analysis) : 37.6 index
Coding Index (artificial-analysis) : 42.2 index
Agentic Index (artificial-analysis) : 24.1 index
Design Arena agenticgamedev (other) : 1024 elo · #12
Design Arena agentichtmlslides (other) : 1066 elo · #10
Design Arena agenticslides (other) : 1072 elo · #10
Design Arena agenticslides(html) (other) : 1066 elo · #10

Notes

Grok 4.3 is listed in the EDNA Models directory from the OpenRouter catalogue.

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