The closest alternative to DeepSeek V3 is DeepSeek V4 Pro — comparable intelligence (39.3 vs —); for a cheaper option, MiMo-V2.5 runs $0.140/M vs $0.200/M; for more speed, Morph V3 Large hits 2.6k t/s; and the best open-weight substitute is MiniMax M3.
DeepSeek V4 Pro is the closest alternative to DeepSeek V3, with an Intelligence Index of 39.3 (DeepSeek V3 scores —) at $0.435 per million input tokens.
Yes — MiMo-V2.5 costs $0.140 per million input tokens versus $0.200 for DeepSeek V3, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to DeepSeek V3 — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.