SpaceXAI debuts Grok 4.5, a faster, cheaper coding-focused AI for business

SpaceXAI released Grok 4.5, its most capable model yet and its first since going public and acquiring Cursor, pitched as a coding/automation tool for business use. Trained with Cursor, Grok 4.5 is claimed to outperform some rivals on engineering and knowledge tasks while being faster and cheaper, priced at $2 per million input tokens and $6 per million output tokens. It’s available in Grok Build, Cursor on all plans, and SpaceXAI’s console (not yet in the EU). While it trails the largest OpenAI/Anthropic models in peak performance, SpaceXAI positions Grok as a cost-effective enterprise option and notes potential revenue from compute capacity leasing.