The closest alternative to Nemotron 3 Nano 30B A3B is GPT-4.1 Nano — comparable intelligence (13.0 vs 13.2); for a cheaper option, Nemotron 3 Ultra (free) runs Free/M vs $0.050/M; for more speed, gpt-oss-120b (free) hits 554 t/s; and the best open-weight substitute is MiniMax M3.
GPT-4.1 Nano is the closest alternative to Nemotron 3 Nano 30B A3B, with an Intelligence Index of 13.0 (Nemotron 3 Nano 30B A3B scores 13.2) at $0.100 per million input tokens.
Yes — Nemotron 3 Ultra (free) costs Free per million input tokens versus $0.050 for Nemotron 3 Nano 30B A3B, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to Nemotron 3 Nano 30B A3B — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.