The closest alternative to Skyfall 36B V2 is Cydonia 24B V4.1 — comparable intelligence (— vs —); for a cheaper option, GPT-5.6 Luna runs $0.500/M vs $0.550/M; and the best open-weight substitute is Kimi K3.
Cydonia 24B V4.1 is the closest alternative to Skyfall 36B V2, with an Intelligence Index of — (Skyfall 36B V2 scores —) at $0.300 per million input tokens.
Yes — GPT-5.6 Luna costs $0.500 per million input tokens versus $0.550 for Skyfall 36B V2, while staying within ~8 points of its Intelligence Index.
Kimi K3 is the strongest open-weight alternative to Skyfall 36B V2 — downloadable from Hugging Face and self-hostable, scoring 57.1 on intelligence.