The closest alternative to GLM 5 Turbo is MiniMax M2.7 — comparable intelligence (38.1 vs 38.1); for a cheaper option, GPT-5.6 Terra runs $1.00/M vs $1.20/M; and the best open-weight substitute is Kimi K3.
MiniMax M2.7 is the closest alternative to GLM 5 Turbo, with an Intelligence Index of 38.1 (GLM 5 Turbo scores 38.1) at $0.250 per million input tokens.
Yes — GPT-5.6 Terra costs $1.00 per million input tokens versus $1.20 for GLM 5 Turbo, while staying within ~8 points of its Intelligence Index.
Kimi K3 is the strongest open-weight alternative to GLM 5 Turbo — downloadable from Hugging Face and self-hostable, scoring 57.1 on intelligence.