No, Kimi k3 is 2.8T params. This is 2.4T params but ~5TB weights because it was released in bf16 and ~2.5TB for the fp8 version. Kimi k3 launched with QAT 4bit, so ~1.5TB weights.

KIMI K3 was the biggest open weight release afaik; It is 2.8T-A100B if I'm correct