66th Annual Grammy Awards

• Three new categories – Best African Music Performance, Best Alternative Jazz Album and Best Pop Dance Recording – were added.
• Two categories, Producer of the Year, Non-Classical and Songwriter of the Year, Non-Classical, were moved to the General Field and can now be voted on by the entire Grammy voting membership.
• The number of nominees in the "Big Four" General Field categories (Album of the Year, Record of the Year, Song of the Year, and Best New Artist) was reduced from ten to eight.
• In order to qualify as a nominee on a project nominated for Album of the Year, the credited [lead] artists, featured artists, songwriters, producers, engineers, mixers and mastering engineers must play on a total of 20% of an album's playing time. There had previously been no minimum level of involvement required at the preceding two Grammy Awards.
• The requirement that a project must include at least 51% performance-based material has been removed from the Best Music Film category.
• Best Regional Mexican Music Album (including Tejano) has been renamed Best Música Mexicana Album (including Tejano).
• Best Improvised Jazz Solo has been renamed Best Jazz Solo Performance.

The Grammy ballot was reduced from 26 fields to 11, not including the General Field. The Recording Academy stated that this was done to ensure that all voting members were able to exercise all ten of their allocated votes, as this was prevented due to some fields previously only containing one category. In addition to their votes in the General Field, voters are encouraged to cast up to ten genre category votes spread across a maximum of three fields. As of the 66th Annual Grammy Awards, the fields are listed as follows:

• Pop & Dance/Electronic Music (6 categories)
• Rock, Metal & Alternative Music (6 categories)
• R&B, Rap & Spoken Word Poetry (10 categories)
• Jazz, Traditional Pop, Contemporary Instrumental & Musical Theater (9 categories)
• Country & American Roots Music (13 categories)
• Gospel & Contemporary Christian Music (5 categories)
• Latin, Global, African, Reggae & New Age, Ambient or Chant Music (10 categories)
• Children's, Comedy, Audiobook Narration and Storytelling, Visual Media & Music Video/Film (9 categories)
• Package, Notes & Historical (4 categories)
• Production, Engineering, Composition & Arrangement (8 categories)
• Classical Music (8 categories)

On June 16, 2023, the Recording Academy declared that "only human creators are eligible to be submitted for consideration for, nominated for, or win a Grammy Award. A work that contains no human authorship is not eligible in any categories." The Academy further specified that works featuring AI-generated material are eligible for an award only if a human contributed to the work meaningfully in the category, and that contributors of only AI-generated material are not eligible for an award.[5][6]