FanCoreEarly data · Pixiv (SFW) + Danbooru

Voice-synth (Vocaloid, Hatsune Miku, Kasane Teto)

voice synthボカロ
Creator-native · Since 2007 · JP / Global
Current dynamics from Jan 1, 2026Data through Sep 29, 2026Sources: Pixiv (origin, safe-for-work only) · Danbooru (archive proxy)
Early data.Pixiv is read without login, so R-18 works are not counted. Danbooru mirrors work first posted elsewhere and is a lower bound. X is not collected yet. Fan music and producer MVs are a separate index that is not measured yet.
PeriodCompared with the previous equal period · data through Sep 29, 2026
Visual output◇ Experimental
1,883decreased by 6.2 percent compared with the previous 14-day period−124 vs previous 14 daysNew human-made works on Pixiv tagged for this fandom. Safe-for-work only; AI works excluded.
Calculated
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
visual_output@0.1
Active creators◇ Experimental
1,374decreased by 7.3 percent compared with the previous 14-day period−109 vs previous 14 daysPixiv accounts that posted at least one human-made work. Accounts, not people.
Calculated
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
active_creators@0.1
AI-generated share◇ Experimental
12.7%roughly unchanged compared with the previous 14-day period12.7% vs 12.9% previous 14 daysShare of works Pixiv flags as AI-generated. Kept out of the numbers above.
Calculated
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
ai_share@0.1
Archive additions◇ Experimental
986decreased by 4.6 percent compared with the previous 14-day period−48 vs previous 14 daysPosts added to Danbooru for this fandom. A lower bound, not a count of original works.
Proxy
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
archive_additions@0.1
Artist tags◇ Experimental
634decreased by 11.1 percent compared with the previous 14-day period−79 vs previous 14 daysDistinct artist tags on those posts. A proxy for active creators, not accounts.
Proxy
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
archive_artist_tags@0.1

Archive additions per day

Human (non-AI) Danbooru posts per UTC day, Sep 16 – Sep 29

0255075100Sep 16Sep 19Sep 23Sep 26Sep 29
Archive additions per day
Show data table (14 days)
DateArchive additions
Sep 29, 202660
Sep 28, 202697
Sep 27, 202684
Sep 26, 202668
Sep 25, 202654
Sep 24, 202651
Sep 23, 202668
Sep 22, 202683
Sep 21, 202672
Sep 20, 202666
Sep 19, 202670
Sep 18, 202663
Sep 17, 202681
Sep 16, 202669
DanbooruProxyUpload date, not creation datearchive_additions@0.1

Inside the ecosystem

Each group is counted separately; one work can belong to several groups, so rows do not add up to the total.

GroupKindPixiv worksChangeArchive additionsConfidence
Akita Nerucharacter36decreased by 7.7 percent compared with the previous 14-day period29
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
Hatsune Mikucharacter1,505decreased by 8.6 percent compared with the previous 14-day period754
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
Kasane Tetocharacter477increased by 6.5 percent compared with the previous 14-day period241
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
CeVIOengine——26
Low confidence, show reasons
Low confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
  • Small sample: 26 (below 30)
Strict VOCALOIDengine———No valid source
Synthesizer Vengine——88
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
UTAUengine———No valid source