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Open-weight model · Image and text to text

Gemma-4-Writers-31B-V2-W8A16-FP8

by Hoborific hoborific/Gemma-4-Writers-31B-V2-W8A16-FP8

Gemma-4-Writers-31B-V2-W8A16-FP8 is an open-weight model for image and text to text from Hoborific. It has 31.3B parameters and a 262,144-token context. At 16-bit it needs about 75.1 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

Quantized version of Ateron/Gemma-4-Writers-31B-V2. Offline-quantized W8A16 FP8 in the float-quantized format: weights in float8e4m3fn with per-output-channel symmetric scales, activations kept in bf16/fp16.

Parameters31.3B
Context262,144
Weights33.3 GB
License—
AccessOpen weights
Monthly Downloads—

Runs On

What it takes to serve Gemma-4-Writers-31B-V2-W8A16-FP8 (31.3B 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 62.5 GB 75.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 31.3 GB 37.5 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 15.6 GB 18.8 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 16, 2026.

Gemma-4-Writers-31B-V2-W8A16-FP8 on every accelerator the SAVRN Index prices, at every precision

Model Card

Quantized version of Ateron/Gemma-4-Writers-31B-V2. Offline-quantized W8A16 FP8 in the float-quantized format: weights in float8e4m3fn with per-output-channel symmetric scales, activations kept in bf16/fp16. For each linear layer, every output row gets its own scale starting from amax / 448, refined by an MSE clip search over ~9 clip fractions (0.8–1.0× amax) picking the lowest-error scale per row. Weights are then quantized q = e4m3(w / scale) with round-to-nearest and saturation. This per-channel + clipping scheme gives better SNR than vLLM's online per-tensor --quantization fp8 path. Only 2D linear projection weights are quantized (attention q/k/v/o, MLP gate/up/down). Embeddings, norms…

Excerpt from the card by Hoborific.

Configuration

Architecture
Gemma4ForConditionalGeneration
Context length (tokens)
262,144
Layers
60
Hidden size
5,376
Feed-forward size
21,504
Attention heads
32
Key/value heads
16
Head dimension
256
Vocabulary size
262,144
Sliding window (tokens)
1,024
Model type
gemma4
Quantization
compressed-tensors

Identity and Version

Repository
hoborific/Gemma-4-Writers-31B-V2-W8A16-FP8
Publisher
Hoborific
Task
Image and text to text
Modality
Image and text
Library
transformers
Parameters
31.3B parameters
Languages
Not stated by the source
Revision
38bb3aa42df2ea532923ba08b47d38ffc19233f6
First published
2026-10-15
Last updated
2026-10-15

Files and Weights

23 files, 33.3 GB in total. The weights are 13 files totalling 33.3 GB in safetensors.

Weights13 files · 33.3 GB
Configuration5 files · 177.4 KB
Tokenizer2 files · 32.2 MB
Documentation1 file · 1.6 KB
Other1 file · 18.7 KB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model-00001-of-00013.safetensorsWeights3.9 GB 94f7d49b0ef4
model-00002-of-00013.safetensorsWeights2.5 GB ea5908ad75c6
model-00003-of-00013.safetensorsWeights2.5 GB 64ade9a35fc4
model-00004-of-00013.safetensorsWeights2.5 GB f1c34c891dc6
model-00005-of-00013.safetensorsWeights2.4 GB af5a24df579e
model-00006-of-00013.safetensorsWeights2.5 GB 3578e6265fdc
model-00007-of-00013.safetensorsWeights2.5 GB e74569d5aedb
model-00008-of-00013.safetensorsWeights2.5 GB 7b4fee64ae10
model-00009-of-00013.safetensorsWeights2.4 GB 8b648926275c
model-00010-of-00013.safetensorsWeights2.4 GB 112248dacd82
model-00011-of-00013.safetensorsWeights2.5 GB 32bc6824db79
model-00012-of-00013.safetensorsWeights2.5 GB 5e2d65e198a3
model-00013-of-00013.safetensorsWeights2.6 GB 2e6023d62816
config.jsonConfiguration54.3 KB —
generation_config.jsonConfiguration202 B —
mergekit_config.ymlConfiguration937 B —
model.safetensors.index.jsonConfiguration120.2 KB —
processor_config.jsonConfiguration1.7 KB —
README.mdDocumentation1.6 KB —
chat_template.jinjaOther18.7 KB —
.gitattributesRepository1.6 KB —
tokenizer.jsonTokenizer32.2 MB cc8d3a0ce364
tokenizer_config.jsonTokenizer3.8 KB —

License and Download

License
Not stated by the source
Access
Open weights, no gate
Download size
33.3 GB
Download from Hoborific

Released by Hoborific through its official repository on Hugging Face.

Built From

  • Derived from Ateron/Gemma-4-Writers-31B-V2
  • Quantized from Ateron/Gemma-4-Writers-31B-V2

Memory Requirements

PrecisionWeights in memory
As published33.3 GB
16-bit62.5 GB
8-bit31.3 GB
4-bit15.6 GB

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

Questions About Gemma-4-Writers-31B-V2-W8A16-FP8

How much GPU memory does Gemma-4-Writers-31B-V2-W8A16-FP8 need?

About 75.1 GB at 16-bit and 18.8 GB at 4-bit: the weights (31.3B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run Gemma-4-Writers-31B-V2-W8A16-FP8 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 is Gemma-4-Writers-31B-V2-W8A16-FP8's context length?

262,144 tokens, from the maximum position embeddings in its published configuration.

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