Grok 4.6 (xhigh)

Grok 4.6 (xhigh), developed by SpaceXAI and released on August 12, 2026, is an artificial intelligence model evaluated across several standardized performance metrics. The model holds an intelligence index of 60 and a coding index of 75.9, while its math index remains unknown. Benchmark results for the model include a GPQA score of 0.935, an HLE score of 0.441, a SciCode score of 0.516, and an LCR score of 0.756666666666667. In terms of operational performance, the model achieves an output speed of 66.199 tokens per second with a time to first token of 42.934 seconds. Pricing for Grok 4.6 (xhigh) is set at $2.00 per million input tokens and $6.00 per million output tokens, resulting in a blended rate of $3.00 per million tokens.