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Open-weight model · Text generation

less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50

by XINKAI ZOU jayzou3773/less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50

less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 is an open-weight model for text generation from XINKAI ZOU, released under Apache License 2.0. It has 59.5B parameters and a 131,072-token context. At 16-bit it needs about 142.8 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

This checkpoint was structurally pruned with the released Less-is-MoE mean-absolute-gradient method.

Parameters59.5B
Context131,072
Weights119.0 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads

Runs On

What it takes to serve less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 (59.5B 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 119.0 GB 142.8 GB 1x MI300X (192 GB)
Vultr
$1.85 1x MI325X $2.00 · 1x MI355X $2.59
8-bit 59.5 GB 71.4 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 29.7 GB 35.7 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 Sep 20, 2026.

less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 on every accelerator the SAVRN Index prices, at every precision

Model Card

By XINKAI ZOU, published under apache-2.0, revision 969e733dff70.

This checkpoint was structurally pruned with the released Less-is-MoE mean-absolute-gradient method. It removes exactly 50% of routed-expert FFN neurons using 64 calibration samples from the gpqamain configuration of Idavidrein/gpqa revision 633f5ee89ab8ad4522a9f850766b73f62147ffdd. The released loader settings are preserved: train, Question plus shuffled choices, Explanation, selectionseed=1234, BF16, and no optimizer step. The samples are full length: no tokenizer maxlength, truncation, or padding. The longest input for this tokenizer is 1,511 tokens. The source MXFP4 checkpoint was explicitly dequantized to BF16 before scoring and pruning. The source-row selection hash is…

Read XINKAI ZOU's full model card

IntDim-E 50% pruned openai/gpt-oss-120b

This checkpoint was structurally pruned with the released Less-is-MoE mean-absolute-gradient method. It removes exactly 50% of routed-expert FFN neurons using 64 calibration samples from the gpqa_main configuration of Idavidrein/gpqa revision 633f5ee89ab8ad4522a9f850766b73f62147ffdd. The released loader settings are preserved: train, Question plus shuffled choices, Explanation, selection_seed=1234, BF16, and no optimizer step. The samples are full length: no tokenizer max_length, truncation, or padding. The longest input for this tokenizer is 1,511 tokens. The source MXFP4 checkpoint was explicitly dequantized to BF16 before scoring and pruning.

The source-row selection hash is 790c4c22309def44542965fdde7c5f38f1d8e354602640cfb31518134b8d92e6 and the model-specific token-file hash is 0c4117b307a807e731a987d9192ee61d7c8ade16c31eb0007bbe400629662080. Full export and zero-mask equivalence metadata are in experiment-export.json. The exact calibration and held-out test rows are in the private dataset jayzou3773/less-is-moe-gpqa-main-calibration-64 revision b9596e85179b3017f77ba1436a5d2e61b6a61a5b, following GPQA's access terms.

Inference requires stock vLLM from the unified Less-is-MoE GPU image. IntDim-E has one uniform expert width. IntDim-L/G retain the routed MoE topology and store compact per-expert widths in config.json.

Configuration

Architecture
GptOssForCausalLM
Context length (tokens)
131,072
Layers
36
Hidden size
2,880
Feed-forward size
1,440
Attention heads
64
Key/value heads
8
Head dimension
64
Vocabulary size
201,088
Experts
128
Experts active per token
4
Sliding window (tokens)
128
Model type
gpt_oss

Identity and Version

Repository
jayzou3773/less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50
Publisher
XINKAI ZOU
Task
Text generation
Modality
Text
Library
Not stated by the source
Parameters
59.5B parameters
Languages
moe
Revision
969e733dff70aee5e94d1cb122ff4d3becb56b10
First published
2026-09-20
Last updated
2026-09-20

Files and Weights

47 files, 119.0 GB in total. The weights are 37 files totalling 119.0 GB in safetensors.

Weights37 files · 119.0 GB
Configuration5 files · 62.8 KB
Tokenizer2 files · 27.9 MB
Documentation1 file · 1.5 KB
Other1 file · 16.7 KB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model-00001-of-00037.safetensorsWeights3.4 GB 8dac872ef78a
model-00002-of-00037.safetensorsWeights3.2 GB 216afc3fc59e
model-00003-of-00037.safetensorsWeights3.2 GB 287286390290
model-00004-of-00037.safetensorsWeights3.2 GB b0675fa8987f
model-00005-of-00037.safetensorsWeights3.2 GB f5db114a35f7
model-00006-of-00037.safetensorsWeights3.2 GB 0d94ee318de8
model-00007-of-00037.safetensorsWeights3.2 GB aaf5de93da80
model-00008-of-00037.safetensorsWeights3.2 GB af069c7c74cb
model-00009-of-00037.safetensorsWeights3.2 GB e9219d69f0c6
model-00010-of-00037.safetensorsWeights3.2 GB 54e1e3b4026e
model-00011-of-00037.safetensorsWeights3.2 GB 19a1b08d04a9
model-00012-of-00037.safetensorsWeights3.2 GB 889bafbc65d8
model-00013-of-00037.safetensorsWeights3.2 GB 51cdfca596ee
model-00014-of-00037.safetensorsWeights3.2 GB 09bf6363a991
model-00015-of-00037.safetensorsWeights3.2 GB abc0134f5217
model-00016-of-00037.safetensorsWeights3.2 GB cc4c7d400d07
model-00017-of-00037.safetensorsWeights3.2 GB d06c662e6377
model-00018-of-00037.safetensorsWeights3.2 GB c55285f58e47
model-00019-of-00037.safetensorsWeights3.2 GB 434625f71528
model-00020-of-00037.safetensorsWeights3.2 GB 31a2574ab3cd
model-00021-of-00037.safetensorsWeights3.2 GB 66b1847a6587
model-00022-of-00037.safetensorsWeights3.2 GB e9803ef6f16c
model-00023-of-00037.safetensorsWeights3.2 GB c50b37ec6298
model-00024-of-00037.safetensorsWeights3.2 GB 2c86c643095d
model-00025-of-00037.safetensorsWeights3.2 GB bc741e8a959f
model-00026-of-00037.safetensorsWeights3.2 GB 3ac35b547df3
model-00027-of-00037.safetensorsWeights3.2 GB 9216fbe14457
model-00028-of-00037.safetensorsWeights3.2 GB 533e94e70c9f
model-00029-of-00037.safetensorsWeights3.2 GB 1873f6e3b116
model-00030-of-00037.safetensorsWeights3.2 GB 3d12e169f229
model-00031-of-00037.safetensorsWeights3.2 GB d1b7c6468511
model-00032-of-00037.safetensorsWeights3.2 GB da4c82654180
model-00033-of-00037.safetensorsWeights3.2 GB f0a5ab28f51e
model-00034-of-00037.safetensorsWeights3.2 GB 064aebbc498b
model-00035-of-00037.safetensorsWeights3.2 GB f0bfd8fe63cf
model-00036-of-00037.safetensorsWeights3.2 GB 310f7e037916
model-00037-of-00037.safetensorsWeights2.2 GB b621ee944d2d
config.jsonConfiguration1.9 KB
experiment-export.jsonConfiguration2.0 KB
generation_config.jsonConfiguration172 B
model.safetensors.index.jsonConfiguration50.4 KB
publication-metadata.jsonConfiguration8.2 KB
README.mdDocumentation1.5 KB
chat_template.jinjaOther16.7 KB
.gitattributesRepository1.6 KB
tokenizer.jsonTokenizer27.9 MB 0614fe83cada
tokenizer_config.jsonTokenizer379 B

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
119.0 GB
Download from XINKAI ZOU

Released by XINKAI ZOU through its official repository on Hugging Face. Read the license.

Built From

Memory Requirements

PrecisionWeights in memory
As published119.0 GB
16-bit119.0 GB
8-bit59.5 GB
4-bit29.7 GB

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

Questions About less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50

How much GPU memory does less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 need?

About 142.8 GB at 16-bit and 35.7 GB at 4-bit: the weights (59.5B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 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.

Can I use less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 commercially?

Yes. less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50 is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

What is less-is-moe-gpt-oss-120b-gpqa-main-64-intdim-e-50's context length?

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

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This checkpoint was structurally pruned with the released Less-is-MoE mean-absolute-gradient method. It removes exactly 50% of routed-expert FFN neurons using 64 calibration samples from the gpqamain configuration of Idavidrein/gpqa revision 633f5ee89ab8ad4522a9f850766b73f62147ffdd. The released loader settings are preserved: train, Question plus shuffled choices, Explanation, selectionseed=1234, BF16, and no optimizer step. The samples are full length: no tokenizer maxlength, truncation, or padding. The longest input for this tokenizer is 1,632 tokens. The source checkpoint was loaded and pruned in BF16. The source-row selection hash is…

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