Grok 4.5 and Meta's Muse Spark 1.1 are now in competitive performance territory, with Grok 4.5 offering the best performance-per-dollar combination among frontier models. OpenAI and Anthropic continue to lead in overall capabilities, but the performance gap is narrowing. Future research progress is increasingly tied to compute deployment, with major labs planning significant capacity.
Grok 4.5's strong performance-per-dollar shifts the competitive landscape, forcing other frontier models to optimize for compute efficiency or risk losing market share.