MiniMax scheduled the open-weight model release for MiniMax M3.1 Flash for October 23, 2026.

From the articleMiniMax Just Launched M3.1 Flash: 428B MoE Agentic Model at $0.15/M InputAlso in MiniMax M3.1 Flash shows China's AI price race has no floor in sight, MiniMax's new M3.1 Flash beats DeepSeek and Opus 5 on a key business benchmark at lower cost — but with a high hallucination rate