Grok 4.3 Review 2026: The Cheapest Frontier AI — But Is Elon’s Chatbot Actually Good?
xAI cut Grok's API price by 60% and added native video input and downloadable file output in the same update. At $1.25/M input tokens, it's the cheapest frontier-class AI available. But the best version is locked behind $300/month, and Grok's political opinionatedness