grok4.8

Grok 4.8 is an upcoming AI model from xAI that is currently in development. As of October 2026, it has not been publicly released for general use.

Key information known about the model includes:

• Development Status: The model has completed its initial pretraining phase and has been moving through reinforcement learning. It is not yet available via the xAI API or other public platforms.
• Technical Specifications: Based on reports attributed to Elon Musk, Grok 4.8 is a 2.5-trillion-parameter model. It is notable for being trained using a new C++ software stack, which has been described as a highly efficient training infrastructure.
• Expected Capabilities: It is expected to further advance the capabilities of the Grok family in areas such as complex reasoning, agentic workflows, software engineering, and professional knowledge work.

Because the model is still in the post-training/reinforcement learning stage, no official benchmarks, pricing, or specific release dates have been confirmed by xAI. The current flagship models accessible to the public remain earlier versions in the Grok 4 series.