About the synthesizer v tag
synthesizer v is a series tag that NovelAI Diffusion can use. On Danbooru it has 3,249 posts, and its best-rated still image scores 1,124. The samples above put the tag at the front of a fixed base prompt with seed 1234, so the differences between tags come from the tag alone.
How each model draws synthesizer v
Follows composition and expression instructions closely, so the effect shows in a tidy form.
Reacts to the tag more strongly, so its effect is easier to see.
WAI illustrious SDXL v17, a local model. Shows how the same tag reads outside NovelAI.
Writing synthesizer v in a prompt
Put the subject first, then this tag, then quality tags.
synthesizer v, solo, best quality, masterpiecewlop, synthesizer v, soloThe negative prompt and the full settings are on the terms page.
How these samples were made
Every image uses 832×1216, seed 1234, 23 steps and the k_euler_ancestral sampler. The base prompt and negative prompt stay the same for every tag, and only the tag under test changes. Images flagged by the NSFW check are regenerated with a new seed or hidden.
From the Danbooru wiki
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An English, Japanese & Chinese vocal synthesizer program developed by Dreamtonics.
List of Synthesizer V products
Original
- Eleanor Forte (ENG-F1)
- AiKO
- GENBU
- Qing Su
- Ryo
- Mo Chen
- An Xiao
- Feng Yi
- Weina
- Yuma
- Natalie
- Mai
- Xuan Yu
- Cong Zheng
- Cheng Xiao
- Ninezero
- Lin Lai
- Yun Quan
- Ritchy
- D-Lin
- Eri
- Sheena
- Hayden
- Wei Shu
- Ayame
- Jin
- Yi Xi
- Ling Wan
- Felicia
- Riku
Beijing Photek S&T Development Co., Ltd.
AI, Inc. (AH-Software)
- Kotonoha Akane & Aoi
- Saki
- Tsurumaki Maki
- Haruno Sora
- Tsuina-chan
- Kyoumachi Seika
- Kevin
TOKYO6 ENTERTAINMENT
UTAU
- Kasane Teto
- Yamine Renri (in development)
Eclipsed Sounds, LLC
AUDIOLOGIE Co., Ltd.
- ANRI
- JUN
VOICEMITH
Internet Co. Ltd.
See also
FAQ
Does NovelAI recognize synthesizer v?
Compare the samples on this page. Every tag on this site shares the same seed and base prompt, so any change you see comes from synthesizer v.
How do I write synthesizer v in a prompt?
Write "synthesizer v" near the front of the prompt and separate it from other tags with commas.
Should I use V5 or V4.5?
V4.5 shows the tag's effect more strongly. V5 gives steadier images with fewer artifacts.

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