[AINews] Kimi K3 2.8T-A50B: the largest open model ever released; Opus 4.8-class at Sonnet 5 pricing a great week for open models continues. Z.ai GLM has been getting a bit too much love recently, so it’s time for Kimi K3 to fight back! It’s hard to put the scale of today’s open model release in perspective, so thankfully Moonshot AI did it for us: Their vibe reel was entirely edited by Kimi K3 an...