On September 14, 2026, xAI CEO Elon Musk said Grok 5 will be the company’s first model to achieve artificial general intelligence (AGI), meaning performance at or above human levels across diverse cognitive tasks. Grok 4.8, which has 2.5 trillion parameters, is expected to complete foundational training this week on xAI’s internal C++ infrastructure before entering reinforcement learning. Musk said Grok 4.7 is broadly comparable with Anthropic’s Opus 5.0, with different strengths across domains, and needs improved multimodal performance. He said Grok 4.9 may reach performance associated with Astra or Fable, while Grok 5 might surpass current products. The AGI prediction remains speculative, and renewed AI safety concerns coincided with Nvidia shares falling 3.46% and AMD declining 6.24%.