SpaceXAI has officially announced the public release of its latest artificial intelligence model, Grok 4.5. The rollout follows a successful beta testing phase that generated positive feedback from early users, according to company statements.
Elon Musk, head of SpaceXAI, described the new model as an “Opus-class” AI. In a post shared on social media, Musk emphasized that while Grok 4.5 maintains the high-performance capabilities associated with Opus-tier models, it has been optimized for significantly faster processing speeds and improved token efficiency. These enhancements are expected to result in lower operational costs for the platform.
Industry analysts note that reaching Opus-level performance places Grok 4.5 in direct competition with the leading models currently dominating the artificial intelligence sector, such as those developed by OpenAI. Recent web traffic data indicates that users are currently spending longer durations in active sessions on Grok.com compared to other prominent AI chat platforms, suggesting a growing user base and high engagement levels.
The release marks a significant milestone for SpaceXAI as it continues to scale its infrastructure to challenge established players in the generative AI market. The model is now available to the public, following the company’s commitment to transition the technology from its testing environment to general access.

