The closest alternative to DeepSeek V4 Flash is Gemini 3 Flash Preview — comparable intelligence (46.4 vs 46.0); for a cheaper option, Nemotron 3 Ultra (free) runs Free/M vs $0.098/M; for more speed, GLM 4.7 hits 412 t/s; and the best open-weight substitute is MiniMax M3.
Gemini 3 Flash Preview is the closest alternative to DeepSeek V4 Flash, with an Intelligence Index of 46.4 (DeepSeek V4 Flash scores 46.0) at $0.500 per million input tokens.
Yes — Nemotron 3 Ultra (free) costs Free per million input tokens versus $0.098 for DeepSeek V4 Flash, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to DeepSeek V4 Flash — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.