ComfyUI Node

NeuralBooru LLM

A ComfyUI node in NeuralBooru with 11 inputs and 2 outputs.

By ChrisJohnson89·Created 2 months ago·Updated about a month ago· 15

NeuralBooru LLM

raw_tags
is_fallback

◄user_promptdescribe your scene here►

◄system_promptYou convert a scene description into Danbooru tags for an anime image model. Output ONLY lowercase tags separated by commas. No sentences, no explanations, no numbering, no category words. Write attributes in real Danbooru tag style: 'blue eyes' not 'eye color blue', 'black hair' not 'hair color black'. Use spaces, not underscores. Use 1girl, 1boy, 2girls, etc. for people. Do NOT add quality tags like masterpiece, best quality, absurdres, score_9 - those are added separately. Example input: a cheerful blonde girl in a red dress on a beach at sunset Example output: 1girl, blonde hair, long hair, smile, red dress, beach, sunset, ocean, sky, cloud, standing Example input: a lone samurai in the rain at night Example output: 1boy, solo, samurai, japanese clothes, katana, rain, night, wet, serious, outdoors Now output tags only for the next description. /no_think►

◄modelqwen/qwen3-1.7b►

◄enable_thinkingfalse►

◄temperature0.40►

◄max_tokens500►

◄seed0►

◄lm_studio_urlhttp://localhost:1234►

◄timeout120►

◄api_key►

◄on_errorraise►

CategoryNeuralBooru

Inputs (11)

Name	Type	Default	Description
user_prompt	STRING	describe your scene here	Plain-English scene description to convert into tags.
system_prompt	STRING	You convert a scene description into Danbooru tags for an anime image model. Output ONLY lowercase tags separated by commas. No sentences, no explanations, no numbering, no category words. Write attributes in real Danbooru tag style: 'blue eyes' not 'eye color blue', 'black hair' not 'hair color black'. Use spaces, not underscores. Use 1girl, 1boy, 2girls, etc. for people. Do NOT add quality tags like masterpiece, best quality, absurdres, score_9 - those are added separately. Example input: a cheerful blonde girl in a red dress on a beach at sunset Example output: 1girl, blonde hair, long hair, smile, red dress, beach, sunset, ocean, sky, cloud, standing Example input: a lone samurai in the rain at night Example output: 1boy, solo, samurai, japanese clothes, katana, rain, night, wet, serious, outdoors Now output tags only for the next description. /no_think	Instructions for the LLM. Edit to change tagging behavior.
model	STRING	qwen/qwen3-1.7b	Model id as the server reports it (see /v1/models).
enable_thinking	BOOLEAN	false	Allow reasoning-mode models to think before answering. Slower; output is cleaned either way.
temperature	FLOAT	0.400–2	—
max_tokens	INT	50050–2000	—
seed	INT	00–4294967295	Change to re-roll the LLM call; also sent to the API.
lm_studio_url	STRING	http://localhost:1234	Base URL of any OpenAI-compatible server: LM Studio (:1234), Ollama (:11434), llama.cpp, vLLM.
timeoutopt	INT	12010–600	Seconds to wait for the LLM response.
api_keyopt	STRING		Optional Bearer token for servers that require auth (vLLM, remote endpoints). Leave empty for LM Studio/Ollama.
on_erroropt	COMBO	raise	raise: fail the workflow with a visible error. use_input_text: output your raw description so the workflow still produces an image (sets is_fallback=True).

Outputs (2)

Name	Type	Description
raw_tags	STRING	The LLM's tag-ish output, think-stripped and reasoning-fallback applied. Feed into NeuralBooruValidator for Danbooru validation and template wrapping.
is_fallback	BOOLEAN	True when the LLM call failed and raw_tags holds the original user_prompt (on_error=use_input_text). NeuralBooruValidator skips validation in this case.