What are the hardware requirements for Llama 3 8B ProLong 512K Instruct?

Llama 3 8B ProLong 512K Instruct requires approximately 32.1 GB of VRAM and supports a context window of 512K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Llama 3 8B ProLong 512K Instruct and how large is it?

Llama 3 8B ProLong 512K Instruct is developed by princeton-nlp, a model with 8b 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 Llama 3 8B ProLong 512K Instruct?

Llama 3 8B ProLong 512K Instruct is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Llama 3 8B ProLong 512K Instruct by princeton-nlp — VRAM 32.1GB, 512K context

Name: Llama 3 8B ProLong 512K Instruct
Author: princeton-nlp

Llama 3 8B ProLong 512K Instruct is an open-source language model by princeton-nlp. Features: 8b LLM, VRAM: 32.1GB, Context: 512K, License: llama3, Instruction-Based, LLM Explorer Score: 0.23.

Arxiv:2410.02660 Base model:finetune:princeton-... Base model:princeton-nlp/llama... Dataset:huggingfaceh4/ultracha... Dataset:princeton-nlp/prolong-... Dataset:princeton-nlp/prolong-... Instruct Llama Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/princeton-nlp/Llama-3-8B-ProLong-512k-Instruct

Llama 3 8B ProLong 512K Instruct Parameters and Internals

Model Type

long-context instruction-tuned

Additional Notes

The model is the first open-source model to effectively support a 512K context window. Extensive ablations conducted to find effective ways to extend LM’s context length.

Training Details

Data Sources:

Books, Textbooks, The Stack V1, StackExchange, Tulu-v2, Wikipedia, Arxiv, OpenWebMath, FineWeb, FineWeb-EDU

Data Volume:

40B tokens

Methodology:

long-context training, fine-tuning on UltraChat

Context Length:

512000

LLM Name	Llama 3 8B ProLong 512K Instruct
Repository 🤗	https://huggingface.co/princeton-nlp/Llama-3-8B-ProLong-512k-Instruct
Base Model(s)	Llama 3 8B ProLong 512K Base princeton-nlp/Llama-3-8B-ProLong-512k-Base
Model Size	8b
Required VRAM	32.1 GB
Updated	2026-07-15
Maintainer	princeton-nlp
Model Type	llama
Instruction-Based	Yes
Model Files	4.9 GB: 1-of-7 4.8 GB: 2-of-7 5.0 GB: 3-of-7 5.0 GB: 4-of-7 4.8 GB: 5-of-7 5.0 GB: 6-of-7 2.6 GB: 7-of-7
Model Architecture	LlamaForCausalLM
License	llama3
Context Length	524288
Model Max Length	524288
Tokenizer Class	PreTrainedTokenizerFast
Padding Token	!
Vocabulary Size	128256
Torch Data Type	float32

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Instruction Following and Task Automation
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