What are the hardware requirements for Amethyst 13B?

Amethyst 13B requires approximately 25.9 GB of VRAM and supports a context window of 4K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Amethyst 13B and how large is it?

Amethyst 13B is developed by Undi95, a model with 13b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

How does Amethyst 13B perform on standard benchmarks?

Amethyst 13B has the following published scores: MMLU 55.91. Compare against reference models on this page or on the LLM Explorer leaderboards.

Amethyst 13B by Undi95 — VRAM 25.9GB, 4K context

Name: Amethyst 13B
Author: Undi95

Amethyst 13B is an open-source language model by Undi95. Features: 13b LLM, VRAM: 25.9GB, Context: 4K, License: cc-by-nc-4.0, LLM Explorer Score: 0.13, Arc: 62.6, HellaSwag: 83.2, MMLU: 55.9, GSM8K: 10.8.

Autotrain compatible Endpoints compatible Llama Not-for-all-audiences Nsfw Pytorch Region:us Sharded

Model Card on HF 🤗: https://huggingface.co/Undi95/Amethyst-13B

Amethyst 13B Benchmarks

ARC: 62.63 vs 96.7 (so35)^-35.2%

HellaSwag: 83.17 vs 95.3 (gpt4)^-12.7%

MMLU: 55.91 vs 88.3 (so35)^-36.7%

GSM8K: 10.84 vs 96.4 (so35)^-88.8%

LLME Score: 0.13152

^nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").

What is the LLM Explorer Rank (Score)

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Amethyst 13B Parameters and Internals

LLM Name	Amethyst 13B
Repository 🤗	https://huggingface.co/Undi95/Amethyst-13B
Model Size	13b
Required VRAM	25.9 GB
Updated	2025-09-23
Maintainer	Undi95
Model Type	llama
Model Files	2.1 GB: 1-of-13 2.0 GB: 2-of-13 2.1 GB: 3-of-13 2.0 GB: 4-of-13 2.0 GB: 5-of-13 2.0 GB: 6-of-13 2.0 GB: 7-of-13 2.1 GB: 8-of-13 2.0 GB: 9-of-13 2.0 GB: 10-of-13 2.0 GB: 11-of-13 2.0 GB: 12-of-13 1.6 GB: 13-of-13
Model Architecture	LlamaForCausalLM
License	cc-by-nc-4.0
Context Length	4096
Model Max Length	4096
Transformers Version	4.33.2
Tokenizer Class	LlamaTokenizer
Beginning of Sentence Token	<s>
End of Sentence Token	</s>
Unk Token	<unk>
Vocabulary Size	32000
Torch Data Type	float16

Best Alternatives to Amethyst 13B

Best Alternatives	Context / RAM	Downloads	Likes
Yarn Llama 2 13B 128K	128K / 26 GB	1657	113
Luminaura RP 13B	128K / 26 GB	15	1
Agent Llama2 13B 80K	80K / 26.4 GB	5	0
Chat Llama2 13B 80K	80K / 52.8 GB	11	0
LongAlign 13B 64K	64K / 26 GB	53	13
LongAlign 13B 64K	64K / 26 GB	11	13
LongAlign 13B 64K Base	64K / 26 GB	41	3
LongAlign 13B 64K Base	64K / 26 GB	6	3
Openbuddy Llama2 13B V15p1 64K	64K / 26.1 GB	7	4
Yarn Llama 2 13B 64K	64K / 26 GB	1865	18

Rank the Amethyst 13B Capabilities

🆘 Have you tried this model? Rate its performance. This feedback would greatly assist ML community in identifying the most suitable model for their needs. Your contribution really does make a difference! 🌟

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

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Release v20260328a

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Amethyst 13B by Undi95

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Amethyst 13B Benchmarks

Amethyst 13B Parameters and Internals

Best Alternatives to Amethyst 13B

Rank the Amethyst 13B Capabilities

What open-source LLMs or SLMs are you in search of? 53972 in total.