Why new 100B-120B models are scarce

A Reddit discussion notes that recent large models like GPT-OSS-120B, GLM-4.5-Air, Qwen3.5-122B are at least 3 months old, while newer releases are either 25B-35B (Gemma4, Qwen3.6) or 200B+ (Step 3.5/3.7). The community questions the lack of new models in the 100B-120B range.