Elon Musk’s xAI released Grok 4.3 and a voice cloning suite called Custom Voices. This launch intensifies competition with OpenAI, Google, and Anthropic. Grok 4.3 includes always-on reasoning and multimodal support for text and images. The model features a one-million-token context window for complex document analysis.
xAI set API pricing at $1.25 per million input tokens. Output tokens are priced at $2.50 per million. These rates represent a significant price reduction compared to previous models. The strategy positions xAI as a value leader in the enterprise AI market.
The Custom Voices suite generates digital voice clones from short audio clips. Users can deploy these clones across xAI’s text-to-speech and voice agent APIs.