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
931decreased by 2.2 percent compared with the previous 7-day period−21 vs previous 7 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
752decreased by 4.1 percent compared with the previous 7-day period−32 vs previous 7 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
11.8%decreased by 1.9 percentage points compared with the previous 7-day period11.8% vs 13.7% previous 7 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
482decreased by 4.4 percent compared with the previous 7-day period−22 vs previous 7 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
330decreased by 7.8 percent compared with the previous 7-day period−28 vs previous 7 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 23 – Sep 29

0255075100Sep 23Sep 25Sep 26Sep 28Sep 29
Archive additions per day
Show data table (7 days)
DateArchive additions
Sep 29, 202660
Sep 28, 202697
Sep 27, 202684
Sep 26, 202668
Sep 25, 202654
Sep 24, 202651
Sep 23, 202668
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 Nerucharacter14decreased by 36.4 percent compared with the previous 7-day period18
Low confidence, show reasons
Low confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
  • Small sample: 14 (below 30)
Hatsune Mikucharacter770increased by 4.8 percent compared with the previous 7-day period372
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
Kasane Tetocharacter211decreased by 20.7 percent compared with the previous 7-day period119
Medium confidence, show reasons
Medium confidence
  • Pixiv public search without login: safe-for-work works only, R-18 is not visible
CeVIOengine——10
Low confidence, show reasons
Low confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
  • Small sample: 10 (below 30)
Strict VOCALOIDengine———No valid source
Synthesizer Vengine——37
Medium confidence, show reasons
Medium confidence
  • Danbooru is an archive mirror: lower-bound proxy, not unique original works
UTAUengine———No valid source