grok-4-fast
Dec 2, 2025
grok-4
grok-4-fast
x-ai
Grok 4 Fast API launch: 98% cheaper to run, built for high-throughput search
xAI announced Grok 4 Fast, a cost-optimized variant of its Grok family that the company says delivers near-flagship benchmark performance while slashing the
Sep 30, 2025
grok 4
grok-4-fast
grok-4
grok-4-fast
Grok-4-fast API
Grok-4-Fast is xAI’s new cost-efficient reasoning model designed to make high-quality reasoning and web search capabilities cheaper and faster for both consumer and developer use. xAI positions it as a frontier offering that preserves Grok-4’s benchmark performance while improving token efficiency, and ships two variants tuned for either reasoning or non-reasoning workloads.
