Elon Musk's xAI launched Grok 4.3, a new large language model, alongside a proprietary voice cloning suite. The moves come as Musk battles OpenAI co-founder Sam Altman in court over alleged misuse of trade secrets.

Grok 4.3 arrives priced aggressively low to undercut competitors. The voice cloning tool ships as a web-based feature, letting users generate synthetic voices at scale. xAI released both products despite recent executive turnover that saw all 10 original co-founders depart the company.

The timing reveals Musk's aggressive strategy to capture market share in generative AI. OpenAI controls the dominant position with ChatGPT's massive user base. xAI competes on pricing and speed, betting that businesses and developers will switch for cheaper, faster alternatives.

The voice cloning suite targets creators and enterprises needing synthetic narration without licensing deals or hiring talent. Grok 4.3 positions itself against GPT-4 and Claude, with pricing designed to undercut both.

xAI remains privately held. Musk previously funded the company through his own capital and secured backing from investors including Sequoia Capital, though specific recent valuation figures remain undisclosed. The company operates from Memphis, Tennessee and maintains infrastructure across multiple data centers.