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Open-weight model · Text generation

Llama-3.2-1B-Instruct-TOFU-forget10-NPO

by Varun Sampath Kumar Lordvarun23/Llama-3.2-1B-Instruct-TOFU-forget10-NPO

Llama-3.2-1B-Instruct-TOFU-forget10-NPO is an open-weight model for text generation from Varun Sampath Kumar, released under llama3.2. It has 1.2B parameters and a 131,072-token context. At 16-bit it needs about 3 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

open-unlearning/tofuLlama-3.2-1B-Instructfull (Llama-3.2-1B-Instruct fine-tuned on all 4,000 TOFU QA pairs) after unlearning the forget10 split (20 fictitious authors) with NPO.

Parameters1.2B
Context131,072
Weights4.9 GB
Licensellama3.2
AccessOpen weights
Monthly Downloads—

Runs On

What it takes to serve Llama-3.2-1B-Instruct-TOFU-forget10-NPO (1.2B parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 2.5 GB 3.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 1.2 GB 1.5 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.6 GB 0.7 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Oct 15, 2026.

Llama-3.2-1B-Instruct-TOFU-forget10-NPO on every accelerator the SAVRN Index prices, at every precision

Model Card

open-unlearning/tofuLlama-3.2-1B-Instructfull (Llama-3.2-1B-Instruct fine-tuned on all 4,000 TOFU QA pairs) after unlearning the forget10 split (20 fictitious authors) with NPO. NPO (Negative Preference Optimization; Zhang et al., 2024): $\mathcal{L} = \gamma\,\tfrac{2}{\beta}\,\mathbb{E}{\text{forget}}\big[\log\big(1+(\pi\theta/\pi{\text{ref}})^{\beta}\big)\big] + \alpha\,\mathrm{NLL}(\text{retain})$, with $\pi{\text{ref}}$ the frozen starting model. TOFU contains 200 fictitious authors with 20 QA pairs each. forget10 holds 10% of them (20 authors, 400 QA pairs); retain90 holds the other 180 authors. The oracle is the same base model fine-tuned on retain90 only, i.e. a model that never saw…

Excerpt from the card by Varun Sampath Kumar, licensed llama3.2.

Configuration

Architecture
LlamaForCausalLM
Context length (tokens)
131,072
Layers
16
Hidden size
2,048
Feed-forward size
8,192
Attention heads
32
Key/value heads
8
Head dimension
64
Vocabulary size
128,256
RoPE base
500000
Stored precision
float32
Model type
llama

Identity and Version

Repository
Lordvarun23/Llama-3.2-1B-Instruct-TOFU-forget10-NPO
Publisher
Varun Sampath Kumar
Task
Text generation
Modality
Text
Library
transformers
Parameters
1.2B parameters
Languages
en
Revision
6ea59b8ed118310d0e5c814f77ab9713158a8f62
First published
2026-10-15
Last updated
2026-10-15

Files and Weights

8 files, 5.0 GB in total. The weights are 1 file totalling 4.9 GB in safetensors.

Weights1 file · 4.9 GB
Configuration3 files · 1.4 KB
Tokenizer2 files · 17.3 MB
Documentation1 file · 6.4 KB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights4.9 GB b4e2cf2bf97e
config.jsonConfiguration871 B —
generation_config.jsonConfiguration184 B —
special_tokens_map.jsonConfiguration325 B —
README.mdDocumentation6.4 KB —
.gitattributesRepository1.6 KB —
tokenizer.jsonTokenizer17.2 MB 6b9e4e7fb171
tokenizer_config.jsonTokenizer54.6 KB —

License and Download

License
llama3.2
Access
Open weights, no gate
Download size
4.9 GB
Download from Varun Sampath Kumar

Released by Varun Sampath Kumar through its official repository on Hugging Face.

Built From

  • Derived from open-unlearning/tofu_Llama-3.2-1B-Instruct_full
  • Described by arXiv:2404.05868
  • Trained on (disclosed) locuslab/TOFU

Memory Requirements

PrecisionWeights in memory
As published4.9 GB
16-bit2.5 GB
8-bit1.2 GB
4-bit0.6 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Questions About Llama-3.2-1B-Instruct-TOFU-forget10-NPO

How much GPU memory does Llama-3.2-1B-Instruct-TOFU-forget10-NPO need?

About 3 GB at 16-bit and 0.7 GB at 4-bit: the weights (1.2B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run Llama-3.2-1B-Instruct-TOFU-forget10-NPO on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

What license is Llama-3.2-1B-Instruct-TOFU-forget10-NPO released under?

llama3.2, as its publisher declares it. Read the license text before commercial use.

What is Llama-3.2-1B-Instruct-TOFU-forget10-NPO's context length?

131,072 tokens, from the maximum position embeddings in its published configuration.

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