This is an efficient zero-shot classifier inspired by GLiNER work. It demonstrates the same performance as a cross-encoder while being more compute-efficient because classification is done at a single forward path.

It can be used for topic classification, sentiment analysis, and as a reranker in RAG pipelines.

The model was trained on logical tasks to induce reasoning. LoRa adapters were used to fine-tune the model without destroying the previous knowledge.

LoRA parameters:

	gliclass‑modern‑base‑v3.0	gliclass‑modern‑large‑v3.0	gliclass‑base‑v3.0	gliclass‑large‑v3.0
LoRa r	512	768	384	384
LoRa α	1024	1536	768	768
focal loss α	0.7	0.7	0.7	0.7
Target modules	"Wqkv", "Wo", "Wi", "linear_1", "linear_2"	"Wqkv", "Wo", "Wi", "linear_1", "linear_2"	"query_proj", "key_proj", "value_proj", "dense", "linear_1", "linear_2", mlp.0", "mlp.2", "mlp.4"	"query_proj", "key_proj", "value_proj", "dense", "linear_1", "linear_2", mlp.0", "mlp.2", "mlp.4"

GLiClass-V3 Models:

Model name	Size	Params	Average Banchmark	Average Inference Speed (batch size = 1, a6000, examples/s)
gliclass‑edge‑v3.0	131 MB	32.7M	0.4873	97.29
gliclass‑modern‑base‑v3.0	606 MB	151M	0.5571	54.46
gliclass‑modern‑large‑v3.0	1.6 GB	399M	0.6082	43.80
gliclass‑base‑v3.0	746 MB	187M	0.6556	51.61
gliclass‑large‑v3.0	1.75 GB	439M	0.7001	25.22

How to use:

First of all, you need to install GLiClass library:

bash

pip install gliclass
pip install -U transformers>=4.48.0

Then you need to initialize a model and a pipeline:

python

from gliclass import GLiClassModel, ZeroShotClassificationPipeline
from transformers import AutoTokenizer

model = GLiClassModel.from_pretrained("knowledgator/gliclass-base-v3.0")
tokenizer = AutoTokenizer.from_pretrained("knowledgator/gliclass-base-v3.0")
pipeline = ZeroShotClassificationPipeline(model, tokenizer, classification_type='multi-label', device='cuda:0')

text = "One day I will see the world!"
labels = ["travel", "dreams", "sport", "science", "politics"]
results = pipeline(text, labels, threshold=0.5)[0] #because we have one text
for result in results:
 print(result["label"], "=>", result["score"])

If you want to use it for NLI type of tasks, we recommend representing your premise as a text and hypothesis as a label, you can put several hypotheses, but the model works best with a single input hypothesis.

python

# Initialize model and multi-label pipeline
text = "The cat slept on the windowsill all afternoon"
labels = ["The cat was awake and playing outside."]
results = pipeline(text, labels, threshold=0.0)[0]
print(results)

Benchmarks:

Below, you can see the F1 score on several text classification datasets. All tested models were not fine-tuned on those datasets and were tested in a zero-shot setting.

GLiClass-V3:

Dataset	gliclass‑large‑v3.0	gliclass‑base‑v3.0	gliclass‑modern‑large‑v3.0	gliclass‑modern‑base‑v3.0	gliclass‑edge‑v3.0
CR	0.9398	0.9127	0.8952	0.8902	0.8215
sst2	0.9192	0.8959	0.9330	0.8959	0.8199
sst5	0.4606	0.3376	0.4619	0.2756	0.2823
20_news_ groups	0.5958	0.4759	0.3905	0.3433	0.2217
spam	0.7584	0.6760	0.5813	0.6398	0.5623
financial_ phrasebank	0.9000	0.8971	0.5929	0.4200	0.5004
imdb	0.9366	0.9251	0.9402	0.9158	0.8485
ag_news	0.7181	0.7279	0.7269	0.6663	0.6645
emotion	0.4506	0.4447	0.4517	0.4254	0.3851
cap_sotu	0.4589	0.4614	0.4072	0.3625	0.2583
rotten_ tomatoes	0.8411	0.7943	0.7664	0.7070	0.7024
massive	0.5649	0.5040	0.3905	0.3442	0.2414
banking	0.5574	0.4698	0.3683	0.3561	0.0272
snips	0.9692	0.9474	0.7707	0.5663	0.5257
AVERAGE	0.7193	0.6764	0.6197	0.5577	0.4900

Previous GLiClass models:

Dataset	gliclass‑large‑v1.0‑lw	gliclass‑base‑v1.0‑lw	gliclass‑modern‑large‑v2.0	gliclass‑modern‑base‑v2.0
CR	0.9226	0.9097	0.9154	0.8977
sst2	0.9247	0.8987	0.9308	0.8524
sst5	0.2891	0.3779	0.2152	0.2346
20_news_ groups	0.4083	0.3953	0.3813	0.3857
spam	0.3642	0.5126	0.6603	0.4608
financial_ phrasebank	0.9044	0.8880	0.3152	0.3465
imdb	0.9429	0.9351	0.9449	0.9188
ag_news	0.7559	0.6985	0.6999	0.6836
emotion	0.3951	0.3516	0.4341	0.3926
cap_sotu	0.4749	0.4643	0.4095	0.3588
rotten_ tomatoes	0.8807	0.8429	0.7386	0.6066
massive	0.5606	0.4635	0.2394	0.3458
banking	0.3317	0.4396	0.1355	0.2907
snips	0.9707	0.9572	0.8468	0.7378
AVERAGE	0.6518	0.6525	0.5619	0.5366

Cross-Encoders:

Dataset	deberta‑v3‑large‑zeroshot‑v2.0	deberta‑v3‑base‑zeroshot‑v2.0	roberta‑large‑zeroshot‑v2.0‑c	comprehend_it‑base
CR	0.9134	0.9051	0.9141	0.8936
sst2	0.9272	0.9176	0.8573	0.9006
sst5	0.3861	0.3848	0.4159	0.4140
enron_ spam	0.5970	0.4640	0.5040	0.3637
financial_ phrasebank	0.5820	0.6690	0.4550	0.4695
imdb	0.9180	0.8990	0.9040	0.4644
ag_news	0.7710	0.7420	0.7450	0.6016
emotion	0.4840	0.4950	0.4860	0.4165
cap_sotu	0.5020	0.4770	0.5230	0.3823
rotten_ tomatoes	0.8680	0.8600	0.8410	0.4728
massive	0.5180	0.5200	0.5200	0.3314
banking77	0.5670	0.4460	0.2900	0.4972
snips	0.8340	0.7477	0.5430	0.7227
AVERAGE	0.6821	0.6559	0.6152	0.5331

Inference Speed:

Each model was tested on examples with 64, 256, and 512 tokens in text and 1, 2, 4, 8, 16, 32, 64, and 128 labels on an a6000 GPU. Then, scores were averaged across text lengths.

Model  Name / n samples per second per m labels	1	2	4	8	16	32	64	128	Average
gliclass‑edge‑v3.0	103.81	101.01	103.50	103.50	98.36	96.77	88.76	82.64	97.29
gliclass‑modern‑base‑v3.0	56.00	55.46	54.95	55.66	54.73	54.95	53.48	50.34	54.46
gliclass‑modern‑large‑v3.0	46.30	46.82	46.66	46.30	43.93	44.73	42.77	32.89	43.80
gliclass‑base‑v3.0	49.42	50.25	40.05	57.69	57.14	56.39	55.97	45.94	51.61
gliclass‑large‑v3.0	19.05	26.86	23.64	29.27	29.04	28.79	27.55	17.60	25.22
deberta‑v3‑base‑zeroshot‑v2.0	24.55	30.40	15.38	7.62	3.77	1.87	0.94	0.47	10.63
deberta‑v3‑large‑zeroshot‑v2.0	16.82	15.82	7.93	3.98	1.99	0.99	0.49	0.25	6.03
roberta‑large‑zeroshot‑v2.0‑c	50.42	39.27	19.95	9.95	5.01	2.48	1.25	0.64	16.12
comprehend_it‑base	21.79	27.32	13.60	7.58	3.80	1.90	0.97	0.49	9.72

Citation

bibtex

@misc{stepanov2025gliclassgeneralistlightweightmodel,
      title={GLiClass: Generalist Lightweight Model for Sequence Classification Tasks}, 
      author={Ihor Stepanov and Mykhailo Shtopko and Dmytro Vodianytskyi and Oleksandr Lukashov and Alexander Yavorskyi and Mykyta Yaroshenko},
      year={2025},
      eprint={2508.07662},
      archivePrefix={arXiv},
      primaryClass={cs.LG},
      url={https://arxiv.org/abs/2508.07662}, 
}