AstaBrief 8B

Ai2, the Allen Institute for AI, released AstaBrief 8B on 2 October 2026 as a compact open-weight model. It accepts a research question along with passages drawn from scientific literature, and writes a cited report in a single pass. Ai2 built it for Asta, its platform for scientific work, where it runs the Fast mode of report generation.

Main features

• Cited reports: a full report with citations, written in one pass rather than section by section.
• Fast mode: Ai2 says this mode takes about 51 seconds per report, against about 179 seconds for its slower mode, on its own measurement.
• Open weights: the weights and the training data are published, so others can reproduce the work.
• Own hardware: the open weights allow a team to run the model on its own hardware.

Clients

Research and knowledge-management teams, as Ai2 positions the model.

Key facts

• Released: 2 October 2026
• Licence: Apache 2.0, as listed on its Hugging Face repository
• Training: tens of thousands of real research queries, with filtering focused on citations, and preference data

As with any such tool, every citation in its reports should still be checked against the source.