Grok 4.3 has officially been unveiled by xAI. It has a higher intelligence score than Claude Sonnet 4.6 and Muse Spark. It scores 1500 on GDPval-AA, which is 321 points higher than Grok 4.20 0309 v2. It betters Gemini 3.1 Pro Preview, Muse Spark, Gpt-5.4 mini (xhigh), and Kimi K2.5. It is also better on AA-Omniscience Accuracy but at a lower cost.
xAI has launched Grok 4.3, achieving 53 on the Artificial Analysis Intelligence Index with improved agentic performance, ~40% lower input price, and ~60% lower output price than Grok 4.20
The release of Grok 4.3 places @xAI just above Muse Spark and Claude Sonnet 4.6 on the… pic.twitter.com/PUEphf1AhZ
— Artificial Analysis (@ArtificialAnlys) April 30, 2026
Grok 4.3 has lower input and output token prices, so it is cheaper to run for these tests as Grok 4.20. While it is not the smartest model, it is pretty cost efficient.
[HT]
