xAI Launches Grok 4.5 With Pricing Built to Undercut Anthropic's Opus 4.8
XAI launched Grok 4.5 on July 9, pricing it at $2 per million input tokens and $6 per million output tokens to undercut Anthropic's Claude Opus 4.8. The model, built on a 1.5 trillion parameter mixture-of-experts foundat…