Grok 4.5 Released: Elon Musk's "Opus-Class" AI Model

SpaceXAI has released its new Grok 4.5 model, which founder Elon Musk describes as an "Opus-class model." This is the company's first release since going public. Grok 4.5 is designed to handle tasks like coding, app-building, office work, research, and writing. SpaceXAI claims it has "twice greater token efficiency" than other leading models, which could mean lower costs for users. Musk stated on X that Grok 4.5 is faster, more token-efficient, and lower cost than comparable models. He believes it is roughly comparable to Opus 4.7 but much quicker. SpaceXAI prices Grok 4.5 at $2 per million input tokens and $6 per million output tokens. This is competitive compared to Opus 4.7, which costs $5 per million input tokens and $25 per million output tokens. This could impact those looking for more efficient and affordable AI solutions.