The closest alternative to GPT-4o is GPT Chat Latest — comparable intelligence (— vs —); for a cheaper option, Qwen3.7 Max runs $1.25/M vs $2.50/M; for more speed, Morph V3 Large hits 3.2k t/s; and the best open-weight substitute is MiniMax M3.
GPT Chat Latest is the closest alternative to GPT-4o, with an Intelligence Index of — (GPT-4o scores —) at $5.00 per million input tokens.
Yes — Qwen3.7 Max costs $1.25 per million input tokens versus $2.50 for GPT-4o, while staying within ~8 points of its Intelligence Index.
MiniMax M3 is the strongest open-weight alternative to GPT-4o — downloadable from Hugging Face and self-hostable, scoring 54.7 on intelligence.