Grok 4.5: SpaceXAI's AI Model Undercuts Rivals on Price

SpaceXAI has launched its new AI model, Grok 4.5, dramatically undercutting competitors on price. This is the company's first major launch since going public. Grok 4.5 can handle common AI tasks like coding, writing, and office work. What's interesting is that SpaceXAI says it performs these tasks just as well as other models but at about half the cost. This is because it has "twice greater token efficiency" than its peers. SpaceXAI founder Elon Musk compared Grok 4.5 to Anthropic's Opus, calling it an "Opus-class model, but faster, more token-efficient and lower cost." He added that Grok 4.5 is roughly comparable to Opus 4.7 in performance but much faster. The company states Grok 4.5 costs about $2 per 1 million input tokens and $6 per 1 million output tokens. This is significantly cheaper than rivals like Opus 4.7 and 4.8, which cost $5 for input and $25 for output tokens. OpenAI's newest model, GPT-5.6 Sol, is priced at $5 for input and $30 for output tokens. The bottom line is that Grok 4.5 offers a combination of capability, speed, and lower cost, which could be a compelling advantage for heavy AI users.