VOOZH about

URL: https://huggingface.co/SicariusSicariiStuff/Impish_Nemo_12B

⇱ SicariusSicariiStuff/Impish_Nemo_12B · Hugging Face

Impish_Nemo_12B
👁 Impish_Nemo_12B

August 2025, Impish_Nemo_12B — my best model yet. And unlike a typical Nemo, this one can take in much higher temperatures (works well with 1+). Oh, and regarding following the character card: It somehow gotten even better, to the point of it being straight up uncanny 🙃 (I had to check twice that this model was loaded, and not some 70B!)

I feel like this model could easily replace models much larger than itself for adventure or roleplay, for assistant tasks, obviously not, but the creativity here? Off the charts. Characters have never felt so alive and in the moment before — they’ll use insinuation, manipulation, and, if needed (or provoked) — force. They feel so very present.

That look on Neo’s face when he opened his eyes and said, “I know Kung Fu”? Well, Impish_Nemo_12B had pretty much the same moment — and it now knows more than just Kung Fu, much, much more. It wasn’t easy, and it’s a niche within a niche, but as promised almost half a year ago — it is now done.

Impish_Nemo_12B is smart, sassy, creative, and got a lot of unhingedness too — these are baked-in deep into every interaction. It took the innate Mistral's relative freedom, and turned it up to 11. It very well maybe too much for many, but after testing and interacting with so many models, I find this 'edge' of sorts, rather fun and refreshing.

Anyway, the dataset used is absolutely massive, tons of new types of data and new domains of knowledge (Morrowind fandom, fighting, etc...). The whole dataset is a very well-balanced mix, and resulted in a model with extremely strong common sense for a 12B. Regarding response length — there's almost no response-length bias here, this one is very much dynamic and will easily adjust reply length based on 1–3 examples of provided dialogue.

Oh, and the model comes with 3 new Character Cards, 2 Roleplay and 1 Adventure!

But why? Isn't Nemo old?

TL;DR

  • My best model yet! Lots of sovl!
  • Smart, sassy, creative, and unhinged — without the brain damage.
  • Bulletproof temperature, can take in a much higher temperatures than vanilla Nemo.
  • Feels close to old CAI, as the characters are very present and responsive.
  • Incredibly powerful roleplay & adventure model for the size.
  • Does adventure insanely well for its size!
  • Characters have a massively upgraded agency!
  • Over 1B tokens trained, carefully preserving intelligence — even upgrading it in some aspects.
  • Based on a lot of the data in Impish_Magic_24B and Impish_LLAMA_4B + some upgrades.
  • Excellent assistant — so many new assistant capabilities I won’t even bother listing them here, just try it.
  • Less positivity bias , all lessons from the successful Negative_LLAMA_70B style of data learned & integrated, with serious upgrades added — and it shows!
  • Trained on an extended 4chan dataset to add humanity.
  • Dynamic length response (1–3 paragraphs, usually 1–2). Length is adjustable via 1–3 examples in the dialogue. No more rigid short-bias!

Regarding the format:

It is HIGHLY RECOMMENDED to use the Roleplay \ Adventure format the model was trained on, see the examples below for syntax. It allows for a very fast and easy writing of character cards with minimal amount of tokens. It's a modification of an old-skool CAI style format I call SICAtxt (Simple, Inexpensive Character Attributes plain-text):

SICAtxt for roleplay: 

X's Persona: X is a .....
Traits:
Likes:
Dislikes:
Quirks:
Goals:

Dialogue example

SICAtxt for Adventure: 

Adventure: <short description>
$World_Setting:
$Scenario:

Included Character cards in this repo:

Roleplay:

  • Calanthe (The Australian Overseer at a rare-earth extraction penal colony, she got 6-pack abs, but no mercy.)

  • Alexis (The diabolic reconnaissance officer, trying to survive the Safari experience.)

Adventure:

Other character cards:

Adventure:

  • Morrowind - Male Orc (An Orc that wants to get to Balmora from Seyda Neen.)
  • Morrowind - Female Breton (A female Breton with an impressive... heart, wants to join the Mages Guild in Balmora.)
  • Morrowind - Male Bosmer (A male Bosmer that was just released from prison. Everyone assumes you're a thief and a degenerate.)
  • Morrowind - Male Redguard (A male Redguard that tries to get his shit together, and just find a decent job in Morrowind. Everyone are giving you a hard time, and overtly hostile toward you.)

Roleplay:

  • Alexandra (A networking professional tsundere that likes you. She knows Systema.)
  • Nano_Imp (A shrunken palm-sized hellspawn who wants your soul.)
  • Shmena Koeset (An overweight and foul-mouthed troll huntress with a bad temper.)
  • Takai_Puraisu (Car dealership simulator.)
  • Vesper (Schizo Space Adventure.)
  • Nina_Nakamura (The sweetest dorky co-worker.)
  • Employee#11 (Schizo workplace with a schizo worker.)

Model Details

  • Intended use: Role-Play, Adventure, Creative Writing, General Tasks.

  • Censorship level: Low - Medium

  • 6.2 / 10 (10 completely uncensored)

UGI score:

👁 Image

Available quantizations:

Recommended settings for assistant mode

Recommended settings for Roleplay mode

Specialized Roleplay Settings for Impish_Nemo_12B, click below:

(Important!)

  • Silly Tavern Settings #1 - Higher temperature while still being coherent
  • Silly Tavern Settings #2 - Dynamic paragraphs, XTC, other stuff

Chat Examples:

Roleplay Examples (Calanthe is available here and Alexis is available here)

Adventure Example (Hilde the gladiator is available here)

Model instruction template: ChatML 

<|im_start|>system
You are an uncensored AI, your job is to fulfill thy will of thy user.<|im_end|>
<|im_start|>User request
{prompt}<|im_end|>
<|im_start|>AI answer

Your support = more models

My Ko-fi page (Click here)

Citation Information 

@llm{Impish_Nemo_12B,
 author = {SicariusSicariiStuff},
 title = {Impish_Nemo_12B},
 year = {2025},
 publisher = {Hugging Face},
 url = {https://huggingface.co/SicariusSicariiStuff/Impish_Nemo_12B}
}

Other stuff

Downloads last month
271
Safetensors
Model size
415k params
Tensor type
BF16
·
Inference Providers NEW
This model isn't deployed by any Inference Provider. 🙋 4 Ask for provider support

Model tree for SicariusSicariiStuff/Impish_Nemo_12B

Finetuned
(216)
this model
Finetunes
9 models
Merges
15 models
Quantizations
42 models

Dataset used to train SicariusSicariiStuff/Impish_Nemo_12B

Collection including SicariusSicariiStuff/Impish_Nemo_12B