Grok 4.6 (low)

Grok 4.6 is a frontier large language model released on August 12, 2026, by SpaceXAI, the artificial intelligence division of SpaceX (formerly known as xAI). Built as a direct successor to Grok 4.5, it is specifically optimized for agentic workflows, complex reasoning, and long-running autonomous tasks. The model is positioned as a high-performance solution for multi-step engineering and research projects, offering improved stability and accuracy over extended iterations.

The model architecture is founded on a 1.5 trillion parameter foundation, maintaining the scale of the previous generation while delivering performance gains through refined supervised fine-tuning (SFT) and reinforcement learning (RL). A key architectural feature is the inclusion of configurable reasoning effort levels—low, medium, high, and xhigh—which allow developers to balance compute expenditure against the depth of the model's internal chain-of-thought processing.

Grok 4.6 supports a 500,000-token context window, enabling the ingestion of massive datasets, technical manuals, or entire software repositories. It is a multimodal system capable of processing both text and image inputs. The model's API natively supports several server-side tools to assist in knowledge work, including live web search, X platform search, and an isolated code execution environment used for verifying logic and performing complex calculations.

Functionally, Grok 4.6 is designed for "vibe coding" and agentic automation, where it can maintain high productivity across long task chains such as codebase migration or iterative product design. It is frequently utilized in professional environments for its ability to handle