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Open-weight model · Text generation

LFM2.5-1.2B-Instruct-heretic-ExecuTorch

by Experimental Machines experimentalmachines/LFM2.5-1.2B-Instruct-heretic-ExecuTorch

LFM2.5-1.2B-Instruct-heretic-ExecuTorch is an open-weight model for text generation from Experimental Machines, released under other. Its published files total 10.7 GB. It draws 73 downloads a month.

ExecuTorch exports of experimentalmachines/LFM2.5-1.2B-Instruct-heretic (revisions 300a0717dd75, 435177079cc7 (see each variant's sourcerevision)) for on-device inference with the openweights Android app or any ExecuTorch 1.4.0 runtime.

Parameters—
Context—
Weights536.9 MB
Licenseother
AccessOpen weights
Monthly Downloads73

Model Card

ExecuTorch exports of experimentalmachines/LFM2.5-1.2B-Instruct-heretic (revisions 300a0717dd75, 435177079cc7 (see each variant's sourcerevision)) for on-device inference with the openweights Android app or any ExecuTorch 1.4.0 runtime. Windows in this repo: XNNPACK (CPU) at 2k to 32k; MediaTek NeuroPilot MT6991 (Dimensity 9400) at 512 to 16k. The window is fixed inside the file: the runtime allocates the whole KV cache at load, so pick the largest window the device can hold (fitsphonebudget in each folder's config.json is the estimate against a 5 GB budget). MediaTek folders also hold the token embedding table the NeuroPilot runner reads from disk, shared by every window…

Excerpt from the card by Experimental Machines, licensed other.

Identity and Version

Repository
experimentalmachines/LFM2.5-1.2B-Instruct-heretic-ExecuTorch
Publisher
Experimental Machines
Task
Text generation
Modality
Text
Library
executorch
Parameters
Not stated by the source
Languages
mtk, on-device
Revision
e44b7567936ed69a3ce1052772876313df9b750e
First published
2026-09-18
Last updated
2026-10-04

Files and Weights

45 files, 10.7 GB in total. The weights are 1 file totalling 536.9 MB in bin.

Weights1 file · 536.9 MB
Configuration12 files · 102.9 KB
Tokenizer1 file · 4.7 MB
Documentation1 file · 15.5 KB
Other29 files · 10.2 GB
Repository1 file · 5.1 KB
Every file
FileTypeSizeSHA-256
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-embedding-fp32.binWeights536.9 MB ece8b635baf1
mtk/mt6991/config.jsonConfiguration14.0 KB —
mtk/mt6991/export-report-16k.jsonConfiguration10.5 KB —
mtk/mt6991/export-report-2k.jsonConfiguration8.4 KB —
mtk/mt6991/export-report-4k.jsonConfiguration8.4 KB —
mtk/mt6991/export-report-512.jsonConfiguration8.4 KB —
mtk/mt6991/export-report-8k.jsonConfiguration8.4 KB —
xnnpack/config.jsonConfiguration4.2 KB —
xnnpack/export-report-16k.jsonConfiguration8.1 KB —
xnnpack/export-report-2k.jsonConfiguration8.1 KB —
xnnpack/export-report-32k.jsonConfiguration8.1 KB —
xnnpack/export-report-4k.jsonConfiguration8.1 KB —
xnnpack/export-report-8k.jsonConfiguration8.1 KB —
README.mdDocumentation15.5 KB —
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk1of8.pteOther134.8 MB ff2c6aa97334
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk2of8.pteOther137.0 MB 499649f32e71
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk3of8.pteOther137.0 MB 43379a5d414e
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk4of8.pteOther134.8 MB d699fe22a634
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk5of8.pteOther137.0 MB d437f7fe8b9a
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk6of8.pteOther137.0 MB f22c64e4adbe
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk7of8.pteOther137.0 MB 0862eab7dd49
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-16k-chunk8of8.pteOther271.6 MB 7dcaceddce91
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-2k-chunk1of4.pteOther271.7 MB 55d83dcf9939
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-2k-chunk2of4.pteOther271.7 MB 3db7bd785281
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-2k-chunk3of4.pteOther273.8 MB 9721c47c9160
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-2k-chunk4of4.pteOther408.4 MB c0212eec4a27
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-4k-chunk1of4.pteOther271.7 MB 8a9c9a25189c
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-4k-chunk2of4.pteOther271.7 MB 0b6e234ceee2
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-4k-chunk3of4.pteOther273.8 MB 2a4f009f7e7f
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-4k-chunk4of4.pteOther408.4 MB 6197a855f7f8
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-512-chunk1of4.pteOther271.6 MB 5a06b45165e8
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-512-chunk2of4.pteOther271.6 MB c612256694b7
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-512-chunk3of4.pteOther273.8 MB 21b3ee07fdd0
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-512-chunk4of4.pteOther408.4 MB 08889c9bf272
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-8k-chunk1of4.pteOther271.7 MB eb4f198df088
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-8k-chunk2of4.pteOther271.7 MB 0e392d2b18c4
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-8k-chunk3of4.pteOther273.9 MB aa7e9bba3d12
mtk/mt6991/LFM2.5-1.2B-Instruct-heretic-neuropilot-a16w8-8k-chunk4of4.pteOther408.5 MB e84bcf0a96fb
xnnpack/LFM2.5-1.2B-Instruct-heretic-8da4w-gptq-16k.pteOther810.4 MB 8dfbc4a4498a
xnnpack/LFM2.5-1.2B-Instruct-heretic-8da4w-gptq-2k.pteOther795.7 MB 9f7047f48cba
xnnpack/LFM2.5-1.2B-Instruct-heretic-8da4w-gptq-32k.pteOther827.1 MB 2439ae7a4879
xnnpack/LFM2.5-1.2B-Instruct-heretic-8da4w-gptq-4k.pteOther797.8 MB b1539f525ac9
xnnpack/LFM2.5-1.2B-Instruct-heretic-8da4w-gptq-8k.pteOther802.0 MB 51a974cfd2c3
.gitattributesRepository5.1 KB —
tokenizer.jsonTokenizer4.7 MB —

License and Download

License
other
Access
Open weights, no gate
Download size
536.9 MB
Download from Experimental Machines

Released by Experimental Machines through its official repository on Hugging Face. Read the license.

Memory Requirements

PrecisionWeights in memory
As published536.9 MB

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

Questions About LFM2.5-1.2B-Instruct-heretic-ExecuTorch

What license is LFM2.5-1.2B-Instruct-heretic-ExecuTorch released under?

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

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