AI Index Report 2021

NoteThe source text directly confirms the existence of the 2021 AI Index Report published by Stanford HAI. The title matches exactly, the author/organization (Stanford HAI) is confirmed, and the publication year (2021) is correct. The URL provided in the record (https://hai.stanford.edu/ai-index/2021-ai-index-report) is consistent with the Stanford HAI domain shown in the source. The publication type as a 'report' is also confirmed by the source text. All key fields are verified by the source material.