Ai2 open-sources AstaBrief 8B, a fast model for generating cited research reports
Original titleOpen-sourcing AstaBrief, the fast report-generation model in Asta
Ai2 released AstaBrief 8B, an open-weights model that turns a research question and retrieved literature excerpts into a cited report, along with its training data.
The model runs as Fast mode in Asta, averaging 51.1 seconds per report versus 178.5 seconds for Thinking mode, about 3.5x faster.
The post also describes filtering synthetic training data by citation density and building DPO pairs judged by two models that agreed.
The post explains how supervised fine-tuning, preference data, and citation-density filtering were used to build a cited-report model, which is useful for teams training their own models.
Source: Hugging Face Blog · huggingface.coPublished · added here