Ant Group open-sources Ling-3.1-flash-1019, a 560B agent-tuned MoE with 1M context under MIT

Released Oct 27 on Hugging Face with its base model, the 25B-active hybrid-linear MoE got extra post-training for multi-step tool use and scores 44 on the Artificial Analysis Intelligence Index (up from 41), at $0.30/$0.90 per million tokens. It's a server model (about 570 GB in FP8, eight H200s on SGLang), and Artificial Analysis flags it as very verbose, so real task costs run higher than the token price suggests.