xAI Launches Grok 4.3 With Aggressive Pricing

xAI has released Grok 4.3, a new large language model, alongside a voice cloning suite. The model shows significant benchmark improvements over its predecessor Grok 4.2 but still trails OpenAI and Anthropic's latest offerings, according to independent evaluator Artificial Analysis. The launch comes amid turbulence at xAI, including the departure of all 10 original co-founders and dozens of researchers. The company is positioning Grok 4.3 competitively on price as it battles rivals including OpenAI, Anthropic, Google, and several Chinese AI firms.