What are the hardware requirements for Lunar Nexus 12B?

Lunar Nexus 12B requires approximately 24.5 GB of VRAM and supports a context window of 1000K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Lunar Nexus 12B and how large is it?

Lunar Nexus 12B is developed by Vortex5, a model with 12b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate Lunar Nexus 12B?

Lunar Nexus 12B is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Lunar Nexus 12B by Vortex5 — VRAM 24.5GB, 1000K context

Name: Lunar Nexus 12B
Author: Vortex5

Lunar Nexus 12B is an open-source language model by Vortex5. Features: 12b LLM, VRAM: 24.5GB, Context: 1000K, Merged, LLM Explorer Score: 0.2.

Merged Model Base model:crestf411/mn-slush Base model:vortex5/moonlit-sha... Base model:vortex5/moonviolet-... Conversational Endpoints compatible Mistral Region:us Roleplay Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/Vortex5/Lunar-Nexus-12B

Lunar Nexus 12B Parameters and Internals

LLM Name	Lunar Nexus 12B
Repository 🤗	https://huggingface.co/Vortex5/Lunar-Nexus-12B
Base Model(s)	MN Slush Moonlit Shadow 12B Moonviolet 12B crestf411/MN-Slush Vortex5/Moonlit-Shadow-12B Vortex5/Moonviolet-12B
Merged Model	Yes
Model Size	12b
Required VRAM	24.5 GB
Updated	2026-08-06
Maintainer	Vortex5
Model Type	mistral
Model Files	4.9 GB: 1-of-5 4.9 GB: 2-of-5 4.9 GB: 3-of-5 4.9 GB: 4-of-5 4.9 GB: 5-of-5
Model Architecture	MistralForCausalLM
Context Length	1024000
Model Max Length	1024000
Transformers Version	4.56.0
Tokenizer Class	PreTrainedTokenizerFast
Vocabulary Size	131075

Rank the Lunar Nexus 12B capabilities

Have you tried this model? Rate its performance — this feedback helps the ML community find the right model for their needs.

Instruction Following and Task Automation
Factuality and Completeness of Knowledge
Censorship and Alignment
Data Analysis and Insight Generation
Text Generation
Text Summarization and Feature Extraction
Code Generation
Multi-Language Support and Translation

Best Alternatives to Lunar Nexus 12B

Best Alternatives	Context / RAM	Downloads	Likes
...r Nemo 12B Instruct R 21 09 24	1000K / 24.5 GB	396277	141
MN 12B Mag Mell R1	1000K / 24.5 GB	69558	238
Riverfish Rocinante 12B SFT	1000K / 49.4 GB	166	1
Riverfish Rocinante 12B	1000K / 49.4 GB	111	1
MN 12B LucidFaun RP RU	1000K / 24.5 GB	1005	6
Qliphoth 12B V1.2	1000K / 24.5 GB	107	7
Captain Eris BMO Violent 12B	1000K / 24.5 GB	305	2
Shining Gold Sakura 12B	1000K / 24.5 GB	52	2
Dans SakuraKaze V1.0.0 12B	1000K / 24.5 GB	7	21
...n Eris BMO Violent GRPO V0.420	1000K / 24.5 GB	92	3

Note: green Score (e.g. "73.2") means that the model is better than Vortex5/Lunar-Nexus-12B.