If my open source models have been useful to you, please consider supporting me in building small, useful AI models for everyone (and help me afford med school / help out my parents financially). Thanks! bert-base-NER is a fine-tuned BERT model that is ready to use for Named Entity Recognition and achieves state-of-the-art performance for the NER task. It has been trained to recognize four types of entities: location (LOC), organizations (ORG), person (PER) and Miscellaneous (MISC). Specifically, this model is a bert-base-cased model that was fine-tuned on the English version of the standard CoNLL-2003 Named Entity Recognition dataset. If you'd like to use a larger BERT-large model…
Open-weight model · Token classification
OpenMed-NER-OrganismDetect-BioPatient-108M
by OpenMed OpenMed/OpenMed-NER-OrganismDetect-BioPatient-108M
Specialized model for Species Entity Recognition - Species names from the Species-800 dataset This model is a state-of-the-art fine-tuned transformer engineered to deliver enterprise-grade accuracy for species entity recognition - species names from the…
Runs On
What it takes to serve OpenMed-NER-OrganismDetect-BioPatient-108M (108M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.
| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also fits |
|---|---|---|---|---|---|
| 16-bit | 0.2 GB | 0.3 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 8-bit | 0.1 GB | 0.1 GB | 1x MI300X (192 GB) Vultr |
$1.85 | 1x H100 $1.99 · 1x MI325X $2.00 |
| 4-bit | 0.1 GB | 0.1 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 18, 2026.
Model Card
By OpenMed, published under apache-2.0, revision bc18d6d72f86.
Specialized model for Species Entity Recognition - Species names from the Species-800 dataset This model is a state-of-the-art fine-tuned transformer engineered to deliver enterprise-grade accuracy for species entity recognition - species names from the species-800 dataset. This specialized model excels at identifying and extracting biomedical entities from clinical texts, research papers, and healthcare documents, enabling applications such as drug interaction detection, medication extraction from patient records, adverse event monitoring, literature mining for drug discovery, and biomedical knowledge graph construction with production-ready reliability for clinical and research…
Read OpenMed's full model card
Specialized model for Species Entity Recognition - Species names from the Species-800 dataset
Model Overview
This model is a state-of-the-art fine-tuned transformer engineered to deliver enterprise-grade accuracy for species entity recognition - species names from the species-800 dataset. This specialized model excels at identifying and extracting biomedical entities from clinical texts, research papers, and healthcare documents, enabling applications such as drug interaction detection, medication extraction from patient records, adverse event monitoring, literature mining for drug discovery, and biomedical knowledge graph construction with production-ready reliability for clinical and research applications.
Key Features
- High Precision: Optimized for biomedical entity recognition
- Domain-Specific: Trained on curated SPECIES800 dataset
- Production-Ready: Validated on clinical benchmarks
- Easy Integration: Compatible with Hugging Face Transformers ecosystem
Supported Entity Types
This model can identify and classify the following biomedical entities:
B-SPECIESI-SPECIES
Dataset
Species800 is a corpus for species recognition and taxonomy classification in biomedical texts.
The Species800 corpus is a manually annotated dataset designed for species recognition and taxonomic classification in biomedical literature. This corpus contains 800 abstracts with comprehensive annotations for organism mentions, supporting biodiversity informatics and biological taxonomy research. The dataset includes both scientific names and common names of species, making it valuable for developing NER systems that can handle the complexity of biological nomenclature. It serves as a benchmark for evaluating species identification models used in ecological studies, conservation biology, and systematic biology research. The corpus is particularly useful for text mining applications in biodiversity databases and biological literature analysis.
Performance Metrics
Current Model Performance
- F1 Score:
0.82 - Precision:
0.81 - Recall:
0.82 - Accuracy:
0.96
Comparative Performance on SPECIES800 Dataset
| Rank | Model | F1 Score | Precision | Recall | Accuracy |
|---|---|---|---|---|---|
| 1 | OpenMed-NER-OrganismDetect-BioMed-335M | 0.8639 | 0.8557 | 0.8722 | 0.9715 |
| 2 | OpenMed-NER-OrganismDetect-PubMed-335M | 0.8550 | 0.8370 | 0.8737 | 0.9698 |
| 3 | OpenMed-NER-OrganismDetect-PubMed-109M | 0.8458 | 0.8287 | 0.8637 | 0.9690 |
| 4 | OpenMed-NER-OrganismDetect-MultiMed-335M | 0.8441 | 0.8352 | 0.8532 | 0.9670 |
| 5 | OpenMed-NER-OrganismDetect-SuperClinical-434M | 0.8435 | 0.8291 | 0.8585 | 0.9670 |
| 6 | OpenMed-NER-OrganismDetect-PubMed-109M | 0.8349 | 0.8082 | 0.8634 | 0.9685 |
| 7 | OpenMed-NER-OrganismDetect-MultiMed-568M | 0.8313 | 0.8053 | 0.8592 | 0.9703 |
| 8 | OpenMed-NER-OrganismDetect-ElectraMed-335M | 0.8288 | 0.8176 | 0.8404 | 0.9631 |
| 9 | OpenMed-NER-OrganismDetect-BioPatient-108M | 0.8154 | 0.8140 | 0.8169 | 0.9591 |
| 10 | OpenMed-NER-OrganismDetect-ElectraMed-33M | 0.8121 | 0.7772 | 0.8503 | 0.9600 |
Rankings based on F1-score performance across all models trained on this dataset.
Figure: OpenMed (Open-Source) vs. Latest SOTA (Closed-Source) performance comparison across biomedical NER datasets.
Quick Start
Installation
pip install transformers torch
Usage
from transformers import pipeline
# Load the model and tokenizer
# Model: https://huggingface.co/OpenMed/OpenMed-NER-OrganismDetect-BioPatient-108M
model_name = "OpenMed/OpenMed-NER-OrganismDetect-BioPatient-108M"
# Create a pipeline
medical_ner_pipeline = pipeline(
model=model_name,
aggregation_strategy="simple"
)
# Example usage
text = "Caenorhabditis elegans is a model organism for genetic studies."
entities = medical_ner_pipeline(text)
print(entities)
token = entities[0]
print(text[token["start"] : token["end"]])
NOTE: The aggregation_strategy parameter defines how token predictions are grouped into entities. For a detailed explanation, please refer to the Hugging Face documentation.
Here is a summary of the available strategies:
- none: Returns raw token predictions without any aggregation.
- simple: Groups adjacent tokens with the same entity type (e.g., B-LOC followed by I-LOC).
- first: For word-based models, if tokens within a word have different entity tags, the tag of the first token is assigned to the entire word.
- average: For word-based models, this strategy averages the scores of tokens within a word and applies the label with the highest resulting score.
- max: For word-based models, the entity label from the token with the highest score within a word is assigned to the entire word.
Batch Processing
For efficient processing of large datasets, use proper batching with the batch_size parameter:
texts = [
"Caenorhabditis elegans is a model organism for genetic studies.",
"The research focused on Drosophila melanogaster development.",
"Arabidopsis thaliana serves as a model for plant biology.",
"The zebrafish, Danio rerio, is widely used for studying vertebrate development.",
"Neurospora crassa is a type of red bread mold used in genetic research.",
]
# Efficient batch processing with optimized batch size
# Adjust batch_size based on your GPU memory (typically 8, 16, 32, or 64)
results = medical_ner_pipeline(texts, batch_size=8)
for i, entities in enumerate(results):
print(f"Text {i+1} entities:")
for entity in entities:
print(f" - {entity['word']} ({entity['entity_group']}): {entity['score']:.4f}")
Large Dataset Processing
For processing large datasets efficiently:
from transformers.pipelines.pt_utils import KeyDataset
from datasets import Dataset
import pandas as pd
# Load your data
# Load a medical dataset from Hugging Face
from datasets import load_dataset
# Load a public medical dataset (using a subset for testing)
medical_dataset = load_dataset("BI55/MedText", split="train[:100]") # Load first 100 examples
data = pd.DataFrame({"text": medical_dataset["Completion"]})
dataset = Dataset.from_pandas(data)
# Process with optimal batching for your hardware
batch_size = 16 # Tune this based on your GPU memory
results = []
for out in medical_ner_pipeline(KeyDataset(dataset, "text"), batch_size=batch_size):
results.extend(out)
print(f"Processed {len(results)} texts with batching")
Performance Optimization
Batch Size Guidelines: - CPU: Start with batch_size=1-4 - Single GPU: Try batch_size=8-32 depending on GPU memory - High-end GPU: Can handle batch_size=64 or higher - Monitor GPU utilization to find the optimal batch size for your hardware
Memory Considerations:
# For limited GPU memory, use smaller batches
medical_ner_pipeline = pipeline(
model=model_name,
aggregation_strategy="simple",
device=0 # Specify GPU device
)
# Process with memory-efficient batching
for batch_start in range(0, len(texts), batch_size):
batch = texts[batch_start:batch_start + batch_size]
batch_results = medical_ner_pipeline(batch, batch_size=len(batch))
results.extend(batch_results)
Dataset Information
- Dataset: SPECIES800
- Description: Species Entity Recognition - Species names from the Species-800 dataset
Training Details
- Base Model: Bio_Discharge_Summary_BERT
- Training Framework: Hugging Face Transformers
- Optimization: AdamW optimizer with learning rate scheduling
- Validation: Cross-validation on held-out test set
Model Architecture
- Base Architecture: Bio_Discharge_Summary_BERT
- Task: Token Classification (Named Entity Recognition)
- Labels: Dataset-specific entity types
- Input: Tokenized biomedical text
- Output: BIO-tagged entity predictions
Use Cases
This model is particularly useful for: - Clinical Text Mining: Extracting entities from medical records - Biomedical Research: Processing scientific literature - Drug Discovery: Identifying chemical compounds and drugs - Healthcare Analytics: Analyzing patient data and outcomes - Academic Research: Supporting biomedical NLP research
License
Licensed under the Apache License 2.0. See LICENSE for details.
Contributing
We welcome contributions of all kinds! Whether you have ideas, feature requests, or want to join our mission to advance open-source Healthcare AI, we'd love to hear from you.
Follow OpenMed Orgon Hugging Face and click "Watch" to stay updated on our latest releases and developments.
Citation
If you use this model in your research or applications, please cite the following paper:
@misc{panahi2025openmedneropensourcedomainadapted,
title={OpenMed NER: Open-Source, Domain-Adapted State-of-the-Art Transformers for Biomedical NER Across 12 Public Datasets},
author={Maziyar Panahi},
year={2025},
eprint={2508.01630},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2508.01630},
}
Proper citation helps support and acknowledge my work. Thank you!
Configuration
- Architecture
- BertForTokenClassification
- Context length (tokens)
- 512
- Layers
- 12
- Hidden size
- 768
- Feed-forward size
- 3,072
- Attention heads
- 12
- Vocabulary size
- 28,996
- Stored precision
- bfloat16
- Model type
- bert
Identity and Version
- Repository
- OpenMed/OpenMed-NER-OrganismDetect-BioPatient-108M
- Publisher
- OpenMed
- Task
- Token classification
- Modality
- Text
- Library
- transformers
- Parameters
- 108M parameters
- Languages
- en
- Revision
- bc18d6d72f8687d0a52290ef45f31d25ee471438
- First published
- 2025-07-16
- Last updated
- 2025-08-05
Files and Weights
10 files, 216.9 MB in total. The weights are 1 file totalling 215.5 MB in safetensors.
Every file
| File | Type | Size | SHA-256 |
|---|---|---|---|
| model.safetensors | Weights | 215.5 MB | 52786260f40d |
| config.json | Configuration | 750 B | — |
| special_tokens_map.json | Configuration | 125 B | — |
| test_results.json | Configuration | 197 B | — |
| README.md | Documentation | 11.6 KB | — |
| openmed_vs_sota_grouped_bars.png | Other | 497.0 KB | 626b37d9b20c |
| .gitattributes | Repository | 1.6 KB | — |
| tokenizer.json | Tokenizer | 669.2 KB | — |
| tokenizer_config.json | Tokenizer | 1.3 KB | — |
| vocab.txt | Tokenizer | 213.4 KB | — |
License and Download
- License
- apache-2.0
- Access
- Open weights, no gate
- Download size
- 215.5 MB
Released by OpenMed through its official repository on Hugging Face. Read the license.
Built From
- Described by arXiv:2508.01630
Memory Requirements
| Precision | Weights in memory |
|---|---|
| As published | 215.5 MB |
| 16-bit | 0.2 GB |
| 8-bit | 0.1 GB |
| 4-bit | 0.1 GB |
Weights only, from the published parameter count; the key-value cache and runtime add to this.
Questions About OpenMed-NER-OrganismDetect-BioPatient-108M
How much GPU memory does OpenMed-NER-OrganismDetect-BioPatient-108M need?
About 0.3 GB at 16-bit and 0.1 GB at 4-bit: the weights (108M parameters) plus a working margin. A long context needs more.
What is the cheapest GPU to run OpenMed-NER-OrganismDetect-BioPatient-108M 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 OpenMed-NER-OrganismDetect-BioPatient-108M commercially?
Yes. OpenMed-NER-OrganismDetect-BioPatient-108M 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 OpenMed-NER-OrganismDetect-BioPatient-108M's context length?
512 tokens, from the maximum position embeddings in its published configuration.
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