AV1

Not to be confused with AVI, AVC1, or VC-1. For other uses, see AV1 (disambiguation).

AOMedia Video 1
Internet media type
video/AV1,
video/webm
Developed byAlliance for Open Media
Initial release28 March 2018 (2018-03-28)
Latest release
1.0.0 Errata 1[1]
8 January 2019 (2019-01-08)
Type of formatVideo coding format
Contained by
Extended from
Extended toAV2[2]
StandardAOM AV1
Open format?Yes
Free format?See ยง Patent claims
Websiteaomedia.org/av1-features/

AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. It was developed as a successor to VP9 by the Alliance for Open Media (AOMedia),[3] a consortium founded in 2015 that includes semiconductor firms, video on demand providers, video content producers, software development companies and web browser vendors. The AV1 bitstream specification includes a reference video codec.[1] In 2018, Facebook conducted testing that approximated real-world conditions, and the AV1 reference encoder achieved 34%, 46.2%, and 50.3% higher data compression than libvpx-vp9, x264 High profile, and x264 Main profile respectively.[4]

Like VP9, but unlike H.264 (AVC) and H.265 (HEVC), AV1 has a royalty-free licensing model that does not hinder adoption in open-source projects.[5][6][7][8][3][9]

AVIF is an image file format that uses AV1 compression algorithms.

  1. ^ a b Cite error: The named reference av1-spec was invoked but never defined (see the help page).
  2. ^ "AOMedia Announces Year-End Launch of Next Generation Video Codec AV2 on 10th Anniversary". The Alliance for Open Media (AOMedia). Retrieved 15 September 2025.{{cite news}}: CS1 maint: url-status (link)
  3. ^ a b Cite error: The named reference VP9 successor was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference facebookav1tests was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference tax was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference moz-avc-reluctance was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference eetimes-av1release was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference arstechnica-aom-announcement was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference fsfe on frand was invoked but never defined (see the help page).
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