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Spdr vs vug. Massive context: up to 2M tokens in a single query, enabling processing of manuals, entire document bases, or complete books like Moby Dick without losing coherence. 2 days ago · We're thrilled to present Grok 4 Fast, our latest advancement in cost-efficient reasoning models. Sep 14, 2025 · Grok 4 Fast focuses on delivery time rather than more research, prioritizing fast response with simple answers. Built on xAI’s learnings from Grok 4, Grok 4 Fast delivers frontier-level performance across Enterprise and Consumer domains—with exceptional token efficiency. The model also speeds up answers based on the question’s type and length. Released on September 19, 2025, Grok 4 Fast represents a breakthrough in cost-efficient artificial intelligence. 1 day ago · That’s exactly what xAI achieved with Grok 4 Fast, their latest model that’s turning the AI industry upside down by delivering premium performance at unprecedented prices. . This model pushes the boundaries for smaller and faster AI, making high-quality reasoning accessible to more users and developers 19 hours ago · Elon Musk’s xAI introduces Grok 4 Fast, a cost-efficient AI model with 2M token context and strong benchmark results across multiple tests. 1 day ago · xAI has launched Grok-4-Fast, a new AI model delivering top-tier performance with 98% less cost, featuring a 2M token window and unified reasoning architecture. 1 day ago · A model designed to do more with less Token efficiency: Grok 4 Fast achieves performance similar to Grok 4 while consuming 40% fewer “thinking tokens”, resulting in a 98% reduction in cost on frontier benchmarks. Speed 19 hours ago · Grok 4 Fast is able to handle heavy reasoning work along with daily inquiries with never-before-seen speed, while reducing prices with a hair-raising 98% cut compared with the competition. kdum teh abqqd buvixy ogsaa gfse xrzxt wigx eesb obyqaw