The closest alternative to GPT-4o-mini is GPT Chat Latest — comparable intelligence (— vs —); for a cheaper option, MiMo-V2.5 runs $0.140/M vs $0.150/M; for more speed, Morph V3 Large hits 2.6k t/s; and the best open-weight substitute is MiniMax M3.
GPT Chat Latest is the closest alternative to GPT-4o-mini, with an Intelligence Index of — (GPT-4o-mini scores —) at $5.00 per million input tokens.
Yes — MiMo-V2.5 costs $0.140 per million input tokens versus $0.150 for GPT-4o-mini, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to GPT-4o-mini — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.