Macaw, developed by AI2, is a versatile and generative question-answering (QA) system that demonstrates strong zero-shot performance across a variety of questions. It outperforms GPT-3 by more than 10% on a benchmark set of 300 challenge questions, despite being significantly smaller with 11 billion versus 175 billion parameters. Macaw is notable for its ability to generate high-quality answers outside its training domain, use inputs as new inputs recursively, and create explanations alongside answers. It is publicly available for free, making it an accessible tool for researchers and developers. However, the specific pricing for any advanced or commercial use was not mentioned in the sources, suggesting that its primary offering is open-source and free to use.
For detailed information on Macaw, including its features and accessibility, you can refer to the comprehensive discussion and resources available in the research and documentation provided by AI2.
