xAI's Grok 4.5 scores 4.09 on FrontierSWE, ranking second and outperforming Claude Opus 4.8 and GPT-5.5 in coding benchmarks while undercutting on price.

xAI's Grok 4.5 scores 4.09 on FrontierSWE, ranking second and outperforming Claude Opus 4.8 and GPT-5.5 in coding benchmarks while undercutting on price.

Grok 4.5 leads the SWE Marathon benchmark at 29.0%, beating Claude Opus 4.8 and Fable while offering $2 per million token API pricing.