Grok 4.3 vs Claude Opus 4.8: 10x Output Price Gap [2026]

The news portal tech-insider.org published a comparison of two advanced language models — Grok 4.3 from xAI and Claude Opus 4.8 from Anthropic. The main focus is on output cost. It is reported that the price per output token for Grok 4.3 is roughly 10 times lower than that of Claude Opus 4.8. This creates a significant pricing gap, which could impact the choice of developers and enterprises using these models. The exact figures are not provided in the text, but it is emphasized that the difference reaches a tenfold magnitude. The publication date is 2026, but the context suggests a current comparison of the models.