grok-4-8

Question

grok-4-8

Accepted Answer

As of October 23, 2026, **Grok 4.8** is an unreleased model from xAI.

While it has been discussed publicly, it has not been officially released to the public, and no official API identifier, pricing, or benchmark data has been published by xAI.

### Key Information Regarding Grok 4.8:
*   **Public Mentions:** In mid-September 2026, Elon Musk stated that Grok 4.8 is a 2.5 trillion-parameter model. He noted that it was being trained on a new C++ software stack and would undergo reinforcement learning (RL) following the completion of its initial training.
*   **Performance Claims:** Musk has described the model as a "noticeable improvement" over Grok 4.7.
*   **Release Status:** As of late October 2026, there has been no official announcement, model card, or release note for the model. While there has been speculation about its release cadence, the current flagship model available remains Grok 4.7, which was released on September 21, 2026.