
The Allen Institute for AI (Ai2) announced the launch of Asta on August 26, 2025, an open, integrated ecosystem designed to revolutionize scientific research through trustworthy AI agents. Comprising an AI research assistant, a rigorous benchmark suite, and developer resources, Asta emphasizes transparency, reproducibility, and scientific rigor to address the growing challenges of opaque and untested AI tools in research.
Asta is an open-source AI research assistant tailored for scientific workflows, unlike general-purpose tools. It reviews literature, synthesizes findings, provides source citations, and (in beta) analyzes data, seamlessly integrating into real-world research. Already adopted by 194 institutions, Asta aids tasks like identifying therapeutic targets. “Asta’s system is poised to accelerate the path from hunch to insight,” said James Evans, Director of the Knowledge Lab at University of Chicago.
AstaBench, the first rigorous benchmark suite for scientific AI agents, includes over 2,400 problems across 11 benchmarks in four categories: literature understanding, code execution, data analysis, and end-to-end discovery. It features 16 leaderboards evaluating performance and cost efficiency. Asta v0 scored 52.5%, surpassing GPT-5 mini and Claude 3.5 Haiku, highlighting the challenges of complex tasks like coding and the need for purpose-built agents.
Asta Resources provides a toolkit with open-source agents, APIs, post-trained language models, and a Scientific Corpus Tool (extending Ai2’s Semantic Scholar API with 200M+ papers). This enables developers to build and evaluate trustworthy scientific AI, creating a “flywheel of scientific improvement.” “We needed AI tools that could execute complex multi-step plans and stay grounded in evidence,” said Dan Weld, Chief Scientist at Ai2.
With AI tools proliferating, many lack transparency or standardized evaluation. Asta’s open-source, evidence-based approach counters this, offering a principled alternative to proprietary systems. “AI can be transformative for science, but only if it’s held to the same standards as science itself,” said Ali Farhadi, CEO of Ai2. Asta’s ecosystem ensures trust and reproducibility, aligning with Ai2’s mission since its 2014 founding by Paul Allen.
Ai2’s focus on open-source AI, seen in projects like OLMo and Molmo, contrasts with proprietary models from OpenAI and Anthropic. AstaBench’s 2,400+ problems dwarf smaller benchmarks like GAIA (466 questions), emphasizing real-world scientific tasks. The ecosystem’s adoption by 194 institutions underscores its immediate impact, competing with tools like Elsevier’s Scopus but with a fully open framework.
Asta positions Ai2 as a leader in scientific AI, offering a transparent, rigorous ecosystem that empowers researchers and developers. By setting a new standard for trustworthy AI, Asta is poised to accelerate discoveries while maintaining scientific integrity.
Ai2 is a Seattle-based non-profit AI research institute with the mission of building breakthrough AI to solve the world’s biggest problems. Founded in 2014 by the late Paul G. Allen, Ai2 develops foundational AI research and innovative new applications that deliver real-world impact through large-scale open models, open data, robotics, conservation platforms, and more. Ai2 champions true openness through initiatives like OLMo, the world’s first truly open language model framework, Molmo, a family of open state-of-the-art multimodal AI models, and Tulu, the first application of fully open post-training recipes to the largest open-weight models. These solutions empower researchers, engineers, and tech leaders to participate in the creation of state-of-the-art AI and to directly benefit from the many ways it can advance critical fields like medicine, scientific research, climate science, and conservation efforts.