just accidentally tested the new grok-4-fast yesterday and wow. this thing is INSANE for agent workflows beats previous SOTA like gemini 2.5 pro while running 2-5x faster at literally 1/10th the cost. 2M context too. we've burned through millions on gemini over the past 6 months with @flowith_ai. might be time to switch everyone's distracted by gemini 3 and kimi k2 hype right now but new grok 4 is genuinely the most underrated model out there. the performance/cost ratio is unreal