The closest alternative to Qwen3 Max is gpt-oss-120b — comparable intelligence (23.8 vs 24.0); for a cheaper option, GPT-5.6 Luna runs $0.100/M vs $0.780/M; and the best open-weight substitute is Kimi K3.
gpt-oss-120b is the closest alternative to Qwen3 Max, with an Intelligence Index of 23.8 (Qwen3 Max scores 24.0) at $0.037 per million input tokens.
Yes — GPT-5.6 Luna costs $0.100 per million input tokens versus $0.780 for Qwen3 Max, while staying within ~8 points of its Intelligence Index.
Kimi K3 is the strongest open-weight alternative to Qwen3 Max — downloadable from Hugging Face and self-hostable, scoring 57.1 on intelligence.