The closest alternative to Morph V3 Large is Morph V3 Fast — comparable intelligence (— vs —); for a cheaper option, MiniMax M3 runs $0.300/M vs $0.900/M; and the best open-weight substitute is MiniMax M3.
Morph V3 Fast is the closest alternative to Morph V3 Large, with an Intelligence Index of — (Morph V3 Large scores —) at $0.800 per million input tokens.
Yes — MiniMax M3 costs $0.300 per million input tokens versus $0.900 for Morph V3 Large, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to Morph V3 Large — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.