Grok 4.3

Model family by xAI · used by 2 applications

AI Model

Grok 4.3 is a reasoning model designed for complex, accuracy-critical tasks such as advanced logic, math, scientific analysis, and multi-step investigations. It features an improved architecture compared with Grok 4.20, has a one million-token context window, and a knowledge cutoff of December 2025.

Model openness score

Six dimensions, evidence-linked

Model cardClosed

Research paperClosed

Licence termsClosed

Source codeOpen

Weights / base modelClosed

Training dataClosed

Used by

Oracle AI Data Platform

Grok

How this score was built

Public information analysis · Aug 18, 20262Anove analyst review3Counter review by vendor4PublishedCommunity corrections

Work at xAI? Claim this listing to correct or complete the data.