Kai Izumoto

StentorLabs

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AI & ML interests

I'm Kai Izumoto, an independent AI researcher and developer building compact, efficient language models through StentorLabs. I'm passionate about democratizing AI research by demonstrating what's possible on free-tier hardware and accessible compute.

Recent Activity

updated a model about 13 hours ago

StentorLabs/Portimbria-150M

updated a collection about 13 hours ago

Research Papers (Datasets, but not designed to train AI)

updated a dataset 1 day ago

StentorLabs/Portimbria-150M-Vs.-SmolLM2-135M

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Organizations

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StentorLabs 's collections 5

StentorLabs Community Builds

Community-created projects, variants, and experiments built on top of StentorLabs model releases.

CastIronMind/Stentor-Big

Text Generation • 0.1B • Updated Mar 17 • 3.89k • 4
CastIronMind/stentor_python_30m

Text Generation • 30.4M • Updated Mar 4 • 17 • 2
mradermacher/Stentor-30M-Instruct-GGUF

Text Generation • 30.4M • Updated Feb 22 • 184 • 4
mradermacher/Stentor-30M-GGUF

Text Generation • 30.4M • Updated Feb 21 • 102 • 3

Research Papers (Datasets, but not designed to train AI)

Independent, transparent research into small and large language models .

StentorLabs/niche-retrieval-case-study-feb2026

Viewer • Updated Mar 1 • 2.82k • 190
StentorLabs/BPE-vs.-Unigram-Tokenization-at-Constrained-Vocabulary-Sizes

Viewer • Updated 16 days ago • 1 • 65
StentorLabs/Portimbria-150M-Vs.-SmolLM2-135M

Viewer • Updated about 21 hours ago • 1 • 2

Stentor1

The Stentor1 series is StentorLabs’ first family of transparent 12M- and 30M-parameter Llama-style models trained from scratch on free-tier hardware.

StentorLabs/Stentor-30M

Text Generation • 30.4M • Updated Feb 21 • 304 • 3
StentorLabs/Stentor-12M

Text Generation • 12M • Updated Feb 10 • 60 • 1
StentorLabs/Stentor-30M-Instruct

Text Generation • 30.4M • Updated Feb 22 • 91 • 1
StentorLabs/Stentor-12M-Instruct

Text Generation • 12M • Updated Feb 22 • 23 • 1

Datasets

StentorLabs high quality datasets for training language models.

StentorLabs/StenCore-PDF

Viewer • Updated Mar 6 • 149k • 129

Stentor2

The Stentor2 series is an improved version of the Stentor1 series, featuring refinements while keeping full transparency.

StentorLabs/Stentor2-12M-Preview

Text Generation • 12.3M • Updated Feb 25 • 10
StentorLabs/Stentor2-12M

Text Generation • 12.3M • Updated Mar 8 • 110 • 2
StentorLabs/Stentor2-30M

Text Generation • 30.4M • Updated Mar 21 • 107 • 2

StentorLabs Community Builds

Community-created projects, variants, and experiments built on top of StentorLabs model releases.

CastIronMind/Stentor-Big

Text Generation • 0.1B • Updated Mar 17 • 3.89k • 4
CastIronMind/stentor_python_30m

Text Generation • 30.4M • Updated Mar 4 • 17 • 2
mradermacher/Stentor-30M-Instruct-GGUF

Text Generation • 30.4M • Updated Feb 22 • 184 • 4
mradermacher/Stentor-30M-GGUF

Text Generation • 30.4M • Updated Feb 21 • 102 • 3

Datasets

StentorLabs high quality datasets for training language models.

StentorLabs/StenCore-PDF

Viewer • Updated Mar 6 • 149k • 129

Research Papers (Datasets, but not designed to train AI)

Independent, transparent research into small and large language models .

StentorLabs/niche-retrieval-case-study-feb2026

Viewer • Updated Mar 1 • 2.82k • 190
StentorLabs/BPE-vs.-Unigram-Tokenization-at-Constrained-Vocabulary-Sizes

Viewer • Updated 16 days ago • 1 • 65
StentorLabs/Portimbria-150M-Vs.-SmolLM2-135M

Viewer • Updated about 21 hours ago • 1 • 2

Stentor2

The Stentor2 series is an improved version of the Stentor1 series, featuring refinements while keeping full transparency.

StentorLabs/Stentor2-12M-Preview

Text Generation • 12.3M • Updated Feb 25 • 10
StentorLabs/Stentor2-12M

Text Generation • 12.3M • Updated Mar 8 • 110 • 2
StentorLabs/Stentor2-30M

Text Generation • 30.4M • Updated Mar 21 • 107 • 2

Stentor1

The Stentor1 series is StentorLabs’ first family of transparent 12M- and 30M-parameter Llama-style models trained from scratch on free-tier hardware.

StentorLabs/Stentor-30M

Text Generation • 30.4M • Updated Feb 21 • 304 • 3
StentorLabs/Stentor-12M

Text Generation • 12M • Updated Feb 10 • 60 • 1
StentorLabs/Stentor-30M-Instruct

Text Generation • 30.4M • Updated Feb 22 • 91 • 1
StentorLabs/Stentor-12M-Instruct

Text Generation • 12M • Updated Feb 22 • 23 • 1