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Grok 4.3

Name: xAI Grok 4.3
Author: xAI

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2026-04-30

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Grok 4.3 is a leading model in intelligence, offering high performance and notable speed, though it tends to be very verbose. The model supports text and image input, generates text output, and features a 1 million token context window. Grok 4.3 scores 53 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models.

VisionReasoningWeb Search|Proprietary Model

Knowledge Cutoff

2025-12

The date this AI finished learning. It may not know about things that happened after this date.

Input → Output Format

The types of content this AI can receive, and what it can produce in return.

Context Memory

The maximum amount of text the AI can read and process in a single request. A larger number means it can handle longer documents or conversations.

Cost/1M Words

$1.25IN$2.5OUT

The cost of using this AI directly in your own application. Shown in USD per 1 million units of text (tokens).

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AI Performance Evaluation

Arena Overall Score

1456

±11

As of 2026-05-01

Overall Rank

No.34

2,505 Votes

Arena by Ability

Hard Prompts

1464±15No.45

Expert Knowledge

1450±35No.64

Instruction Following

1430±20No.49

Conversation Memory

1458±29No.44

Creative

1453±29No.13

Coding

1495±22No.44

Arena by Occupation

Creative Writing

1450±24No.24

Social Sciences

1455±26No.53

Media

1445±25No.18

Business

1444±26No.48

Software

1486±18No.42

Source:Arena Intelligence

Overall

AA Intelligence Index

53%↑14%

LiveBench

67%↑7%

Reasoning & Math

GPQA Diamond

90%↑8%

HLE

35%↑17%

LB Reasoning

71%↑2%

LB Math

84%↑10%

LB Data

56%↑3%

Coding

AA Coding Index

41%↑5%

LB Coding

70%↓3%

LB Agentic

50%↑5%

TAU2

98%↑17%

TerminalBench

38%↑4%

SciCode

47%↑5%

Language & Instructions

IFBench

81%↑18%

AA-LCR

64%↑2%

LB Language

74%↑1%

LB IF

63%↑12%

Output Speed

Standard Mode

77tok/s↑0

First Output 0.60s

Source:Artificial Analysis LiveBench

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