What is the main difference between Grok 4.3 and Grok 4.20?

While both models are comparable in size, Grok 4.3 features an improved architecture and a more recent knowledge update through December 2025.

How can I access Grok 4.3?

Grok 4.3 is currently a beta version that is being rolled out gradually to users through the official xAI platform.

Is Grok 4.3 a free tool?

No, Grok 4.3 is listed as a paid tool, typically requiring a subscription to the xAI service.

What are the primary strengths of Grok 4.3?

The model excels in reasoning, logic, and academic and mathematical tests, utilizing its multi-agent version to tackle tough challenges.

When was the knowledge cutoff for Grok 4.3 updated?

The model's knowledge is updated through December 2025.

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LLM models

Paid

Grok 4.3

A beta xAI model featuring an improved architecture and knowledge updated through December 2025. Comparable in size to Grok 4.20, it is designed for advanced reasoning and logic tasks.

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Rating

Reviews

Upvotes

5 months ago

Listed

LLM models

xAI

Grok

Artificial Intelligence

Reasoning

Logic

Beta Tool

Generative AI

Tool information

Provider

xAI

Platforms

Web

Languages

English

Added to directory

5 months ago

Last updated

3 months ago

Rating

Not available

Pricing

Paid

About Grok 4.3

What the tool does and who it's for

Grok 4.3 is a high-performance Large Language Model (LLM) developed by xAI, currently in a gradual beta rollout. Positioned as an evolution of the xAI model lineup, it maintains a similar size to the previous Grok 4.20 version while introducing a significantly improved architecture. This model features an expanded knowledge base updated through December 2025, allowing for more current and relevant responses. It is designed to compete with high-end models by offering advanced reasoning, logic, and multi-agent capabilities, specializing in tackling complex mathematical and academic challenges.

Key capabilities

Improved Model Architecture: Enhanced structural design compared to previous iterations for better processing.

Updated Knowledge Base: Information and training data updated through December 2025.

Optimized Reasoning: Specialized in logic and academic performance benchmarks.

Beta Rollout: Gradual release cycle for testing and refinement.

Scalable Performance: Comparable in size to Grok 4.20 but with higher efficiency.

Multi-agent Support: Capable of coordinating tasks across multiple AI agents.

Mathematical Excellence: High performance in technical and mathematical tests.

Direct Access: Integrated into the Grok.com platform ecosystem.

Pricing

Paid — plans below

Paid Version

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