The team behind Grok just dropped Grok 4 Fast, and it's seriously moving the needle on cost-efficient, high-performance AI. Itโs a slimmer, quicker version of Grok 4 that holds its own in benchmarks while slicing token usage and costs. Hereโs why it matters: - 40% fewer thinking tokens on average - Up to 98% cheaper on frontier benchmarks - Unified model handles both reasoning and fast-response tasks - Built-in web and X (Twitter) browsing with multi-hop search - Tops leaderboard in LMArenaโs Search Arena - Real-time info digging and reasoning like an agent - Available now for free on Grok.com, OpenRouter, and via xAI API Read the full article here: https://x.ai/news/grok-4-fast