xAI has launched Grok 4.3, a new large language model and voice cloning suite, expanding its AI product lineup amid ongoing competition with OpenAI and others. The model introduces an always-on reasoning architecture, a 1 million-token context window, and agentic tool-use capabilities. It is available through the xAI API and OpenRouter, with pricing set at $1.25 per million input tokens and $2.50 per million output tokens—significantly lower than its predecessor. The accompanying Custom Voices feature allows users to clone voices from short audio clips, restricted to U.S. users except in Illinois due to privacy laws.
Independent evaluations show Grok 4.3 outperforming its predecessor in legal and financial reasoning benchmarks but lagging behind leading models from OpenAI and Anthropic in general reasoning and coding tasks. The model’s “always-on reasoning” improves accuracy in complex domains but can slow responses in agentic simulations. xAI also introduced new billing categories, including reasoning tokens and tool invocation fees, alongside prompt caching discounts.
Positioned as a cost-efficient alternative for enterprise users, Grok 4.3 targets legal and financial applications where large-scale text processing is critical, though its mixed performance in coding and math may limit broader adoption.
While Elon Musk faces off against his former colleague and OpenAI co-founder Sam Altman in court, Musk's rival firm xAI, founded to take on OpenAI, isn't slowing down on launching competitive new products and services. Last night, xAI shipped a ne
The ‘1 Nojor’ media platform is now live in beta, inviting users to explore and provide feedback as we continue to refine the experience.
