Ai2 releases AstaBrief 8B weights — a model for scientific reports with citations
The Allen Institute for AI (Ai2) has released the AstaBrief 8B weights under the Apache 2.0 license. It is a fine-tune of Qwen3-8B, trained via SFT and DPO without RL, which writes a fully cited report in a single pass from a research query and provided fragments of scientific papers. The open Apache 2.0 weights turn cited review generation from a service feature of commercial agents into an artifact that institutions can run on their own infrastructure — including for sensitive and unpublished