xAI released Grok 4.7 on September 21, 2026, saying it is its most capable model yet for coding and knowledge work.
It is the company's first major update since its initial launch. xAI reported a score of 46 on the Artificial Analysis Intelligence Index (v4.3.2), measured on ten combined benchmarks. That compares with 53 each for Claude Fable 5.1 and GPT-6.
Grok 4.7 is built on a larger base model, trained with longer reinforcement learning, and targets better verification of its own output. Availability begins through the Grok API, Cursor, and Grok Build, initially for developers and businesses.
"It's built on a larger base model, trained with longer reinforcement learning, and designed to better verify its own output," said xAI. The company emphasized its focus on improving internal verification processes.
The announcement follows xAI's previous model releases, with the company framing the significance as a step toward more reliable AI systems. xAI did not say how it plans to close the performance gap, and the open question remains about its long-term strategy. The source says the company will continue to refine its models and expand their capabilities.
Source: thedecoder
