Shanghai AI Lab releases Atria Dawn full version with 512K context window

Shanghai Artificial Intelligence Laboratory has released the full version of Atria Dawn, an agent-oriented model built on the 744-billion-parameter GLM-5.2 base, with a context window raised from 256K to 512K tokens.

The lab reports gains over the preview of 7.2 points on JobBench (57.5 vs 50.3), 2.7 on WideSearch and 2.6 on PaperBench, while the repository still lists 256K for the full model.

Hosted APIs are available, but full-release weights are listed as 'Coming soon' on Hugging Face and ModelScope.