19 models · checked 20 September 2026

Decision models under 500M parameters

Small enough to run on a CPU next to whatever is making the decision. This is where the cost argument for the whole category lives.

Also in this dimension500M to 2B 5Over 2B 6
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laya

convaiinnovations

The most-liked open-weight decision model of the post-Jev wave, a 421M ModernBERT-large encoder. The base release of a three-model family.

421M · apache-2.0

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laya-multilingual

convaiinnovations

The only multilingual decision model we have found, a 322M encoder on mmBERT. Also the one our English-only test set cannot say anything useful about.

322M · apache-2.0

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laya-typed-decisions

convaiinnovations

The Laya variant tuned on the typed-decisions benchmark, and the only open model whose card publishes head-to-head numbers against Jev. One of those numbers is the reason we started measuring.

421M · apache-2.0

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open-jev-deberta-v3-large

com-kotobalabs

A DeBERTa-v3-large encoder positioned as an open reimplementation of Jev. The highest ratio of likes to downloads in the directory, which is usually what a credible claim looks like early.

434M · microsoft/deberta-v3-large · apache-2.0

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LFM2.5-350M-RLCD

notnotsamuel

A typed-decision model from notnotsamuel, 354M parameters. Licensed other, check before commercial use.

354M · other

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rlcd-modernbert-151m

heman10x

The smallest decision model we track, at 151M parameters on a GLiClass/ModernBERT encoder. If it holds accuracy, it changes what this class of model costs to run.

151M · knowledgator/gliclass-modern-base-v2.0 · apache-2.0

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modernbert-ja-310m-jev

argos1111

modernbert-ja-310m fine-tuned to return typed decisions, 315M parameters. Licensed cc-by-sa-4.0, check before commercial use.

315M · sbintuitions/modernbert-ja-310m · cc-by-sa-4.0

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laya-mlx

aac6fef

laya fine-tuned to return typed decisions, 421M parameters.

421M · convaiinnovations/laya · apache-2.0

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laya-vision-smolvlm-256m

thaitea

SmolVLM-256M-Instruct fine-tuned to return typed decisions, 237M parameters. Licensed cc-by-nc-sa-4.0, check before commercial use.

237M · HuggingFaceTB/SmolVLM-256M-Instruct · cc-by-nc-sa-4.0

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jev-schema-scorer-deberta-v3-large

mobarmg

deberta-v3-large fine-tuned to return typed decisions, 435M parameters.

435M · microsoft/deberta-v3-large · mit

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laya-multilingual-mlx

aac6fef

laya-multilingual fine-tuned to return typed decisions, 322M parameters.

322M · convaiinnovations/laya-multilingual · apache-2.0

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laya-grounded

Luni

laya fine-tuned to return typed decisions, 421M parameters. Licensed cc-by-nc-4.0, check before commercial use.

421M · convaiinnovations/laya · cc-by-nc-4.0

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systemone-lite-0.5b

dwidlee

A 0.5B decision model on Qwen2.5, the only entry here built on a previous-generation base. Real downloads, zero likes.

494M · Qwen/Qwen2.5-0.5B-Instruct · apache-2.0

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system-one-mini

DavidHatley

distilbert-base-uncased fine-tuned to return typed decisions, 69M parameters.

69M · distilbert/distilbert-base-uncased · apache-2.0

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bert4jev

ukung

deberta-v3-large fine-tuned to return typed decisions, 434M parameters.

434M · microsoft/deberta-v3-large · apache-2.0

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system-one-distilled

shreyanbr

deberta-v3-xsmall-zeroshot-v1.1-all-33 fine-tuned to return typed decisions, 71M parameters.

71M · MoritzLaurer/deberta-v3-xsmall-zeroshot-v1.1-all-33 · apache-2.0

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system-one-gold

shreyanbr

deberta-v3-xsmall-zeroshot-v1.1-all-33 fine-tuned to return typed decisions, 71M parameters.

71M · MoritzLaurer/deberta-v3-xsmall-zeroshot-v1.1-all-33 · apache-2.0

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system-one-zeroshot

shreyanbr

deberta-v3-xsmall-zeroshot-v1.1-all-33 fine-tuned to return typed decisions, 71M parameters.

71M · MoritzLaurer/deberta-v3-xsmall-zeroshot-v1.1-all-33 · apache-2.0

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laya-typed-decisions-mlx

aac6fef

laya-typed-decisions fine-tuned to return typed decisions, 421M parameters.

421M · convaiinnovations/laya-typed-decisions · apache-2.0

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