The closest alternative to Reka Flash 3 is Reka Edge — comparable intelligence (— vs —); for a cheaper option, Nemotron 3 Ultra (free) runs Free/M vs $0.100/M; for more speed, Morph V3 Large hits 3.1k t/s; and the best open-weight substitute is MiniMax M3.
Reka Edge is the closest alternative to Reka Flash 3, with an Intelligence Index of — (Reka Flash 3 scores —) at $0.100 per million input tokens.
Yes — Nemotron 3 Ultra (free) costs Free per million input tokens versus $0.100 for Reka Flash 3, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to Reka Flash 3 — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.