Elon Musk has announced that xAI’s upcoming artificial intelligence model, Grok 4.5, has entered private beta testing at SpaceX and Tesla, signalling the company’s latest push to compete with the world’s leading AI developers.
In a series of posts on X, Musk said the new model is currently undergoing internal evaluation and has shown promising early results. According to him, Grok 4.5 is performing at a level comparable to Anthropic’s flagship Claude Opus model and could potentially outperform it in certain tasks.
The announcement comes as competition intensifies among AI companies racing to develop increasingly capable large language models for enterprise and consumer applications.
Built on a New AI Foundation
Musk revealed that Grok 4.5 is based on xAI’s new 1.5-trillion-parameter V9 foundation model, marking a significant upgrade from previous versions. The model has also received supplementary training using data from the AI coding platform Cursor, a move aimed at improving its reasoning and software development capabilities.
While Musk did not share benchmark scores or technical comparisons to support his claims, he said internal testing suggests the model is closing the performance gap with leading competitors.
Anthropic’s Claude Opus is widely regarded as one of the most advanced AI models currently available, particularly for complex reasoning, coding, and long-form content generation.
Aggressive AI Release Strategy
Alongside the Grok 4.5 update, Musk outlined an ambitious roadmap for xAI, stating that the company plans to release new AI models on a monthly basis. The strategy reflects xAI’s intention to accelerate product development and respond quickly to rapid advances across the AI industry.
The company is also investing heavily in computing infrastructure to support the development of increasingly powerful AI systems. Musk indicated that expanding training capacity remains a key priority as xAI works to improve model performance and reduce development timelines.
Competition Heats Up
Since launching Grok, xAI has positioned itself as a challenger to established AI developers, including OpenAI, Anthropic, and Google. The latest announcement underscores the company’s efforts to establish Grok as a leading AI assistant capable of competing with the industry’s most advanced models.
Although Musk’s performance claims have yet to be independently verified, the upcoming release of Grok 4.5 is expected to attract significant attention as AI companies continue to compete on reasoning ability, coding performance, and enterprise adoption.
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