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xAI launches Grok 4.3 with ultra cheap API pricing and a voice cloning suite built for agents
Technology
Published on 2 May 2026
It “thinks” first and can clone a voice from 120 seconds
xAI has released Grok 4.3, pairing a major pricing cut with a new “always-on” reasoning design and a 1 million-token context window. The model is aimed at agentic tasks, with built-in web search, code execution, and file retrieval tools. xAI also launched custom voice cloning from 120-second samples, priced for enterprise use—available with geographic limits and enterprise-gated API access.
- Grok 4.3 cuts API costs to $1.25 per million input tokens and $2.50 output
- Reasoning is built in as a permanent pre-response state plus a 1 million-token context window
- New agent tools include web and X search, sandboxed Python, and RAG over uploaded files
- Custom Voices clone from ~120 seconds, but API access is gated to enterprise teams
Read the full story at Venture Beat
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Venture Beat