The closest alternative to Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Nano Banana 2 (Gemini 3.1 Flash Image) — comparable intelligence (— vs —); for a cheaper option, North Mini Code (free) runs Free/M vs $0.250/M; for more speed, gpt-oss-120b (free) hits 750 t/s; and the best open-weight substitute is North Mini Code (free).
Nano Banana 2 (Gemini 3.1 Flash Image) is the closest alternative to Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image), with an Intelligence Index of — (Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) scores —) at $0.500 per million input tokens.
Yes — North Mini Code (free) costs Free per million input tokens versus $0.250 for Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image), while staying within ~8 points of its Intelligence Index.
North Mini Code (free) is the strongest open-weight alternative to Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) — downloadable from Hugging Face and self-hostable, scoring — on intelligence.