Image-Text-to-Text
Transformers
Safetensors
Bengali
gemma4
headline-generation
bangla
bengali
news
vlm
lora
conversational
Instructions to use dipta007/BartaLens-E2B with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use dipta007/BartaLens-E2B with Transformers:
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("image-text-to-text", model="dipta007/BartaLens-E2B") messages = [ { "role": "user", "content": [ {"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"}, {"type": "text", "text": "What animal is on the candy?"} ] }, ] pipe(text=messages)# Load model directly from transformers import AutoProcessor, AutoModelForImageTextToText processor = AutoProcessor.from_pretrained("dipta007/BartaLens-E2B") model = AutoModelForImageTextToText.from_pretrained("dipta007/BartaLens-E2B") messages = [ { "role": "user", "content": [ {"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"}, {"type": "text", "text": "What animal is on the candy?"} ] }, ] inputs = processor.apply_chat_template( messages, add_generation_prompt=True, tokenize=True, return_dict=True, return_tensors="pt", ).to(model.device) outputs = model.generate(**inputs, max_new_tokens=40) print(processor.decode(outputs[0][inputs["input_ids"].shape[-1]:])) - Notebooks
- Google Colab
- Kaggle
- Local Apps
- vLLM
How to use dipta007/BartaLens-E2B with vLLM:
Install from pip and serve model
# Install vLLM from pip: pip install vllm # Start the vLLM server: vllm serve "dipta007/BartaLens-E2B" # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:8000/v1/chat/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "dipta007/BartaLens-E2B", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Describe this image in one sentence." }, { "type": "image_url", "image_url": { "url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg" } } ] } ] }'Use Docker
docker model run hf.co/dipta007/BartaLens-E2B
- SGLang
How to use dipta007/BartaLens-E2B with SGLang:
Install from pip and serve model
# Install SGLang from pip: pip install sglang # Start the SGLang server: python3 -m sglang.launch_server \ --model-path "dipta007/BartaLens-E2B" \ --host 0.0.0.0 \ --port 30000 # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:30000/v1/chat/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "dipta007/BartaLens-E2B", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Describe this image in one sentence." }, { "type": "image_url", "image_url": { "url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg" } } ] } ] }'Use Docker images
docker run --gpus all \ --shm-size 32g \ -p 30000:30000 \ -v ~/.cache/huggingface:/root/.cache/huggingface \ --env "HF_TOKEN=<secret>" \ --ipc=host \ lmsysorg/sglang:latest \ python3 -m sglang.launch_server \ --model-path "dipta007/BartaLens-E2B" \ --host 0.0.0.0 \ --port 30000 # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:30000/v1/chat/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "dipta007/BartaLens-E2B", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Describe this image in one sentence." }, { "type": "image_url", "image_url": { "url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg" } } ] } ] }' - Docker Model Runner
How to use dipta007/BartaLens-E2B with Docker Model Runner:
docker model run hf.co/dipta007/BartaLens-E2B
metadata
library_name: transformers
license: gemma
base_model: unsloth/gemma-4-E2B-it
pipeline_tag: image-text-to-text
language:
- bn
tags:
- headline-generation
- bangla
- bengali
- news
- vlm
- lora
- gemma4
BartaLens-E2B
BartaLens-E2B is a Bangla multimodal headline generation model fine-tuned from gemma-4-E2B-it. Given a Bengali news article (and optionally an accompanying image), it generates a concise, accurate newspaper-style headline. Trained with LoRA on the dipta007/shironam-pro-max dataset with 50% image supervision — the model is robust to both image-present and text-only inputs.
Highlights
- ROUGE-1: 0.3851 | ROUGE-L: 0.3551 | BLEU-4: 10.43 | BERTScore: 0.8969 on own test split (with images)
- ROUGE-1: 0.3840 | ROUGE-L: 0.3553 | BLEU-4: 11.02 | BERTScore: 0.8970 on Shironam test split (text-only)
- Outperforms zero-shot Gemma4-E2B, Qwen3.5-4B, Ministral-3 3B, and prior Bangla headline systems
- Robust to missing images: trained with 50% text-only supervision so performance doesn't degrade without images
Model Overview
| Property | Value |
|---|---|
| Model Type | Vision-Language Model (Causal LM + Vision Encoder) |
| Base Model | unsloth/gemma-4-E2B-it |
| Training | SFT + LoRA (r=32, alpha=32) |
| LoRA Targets | all-linear (vision + language + attention + MLP) |
| Max Sequence Length | 4,096 tokens |
| Language | Bengali (বাংলা) |
| Image Supervision | 50% (model sees image for half of training samples) |
| Effective Batch Size | 64 (8 per device x 8 gradient accumulation) |
Quickstart
from unsloth import FastVisionModel, get_chat_template
import torch
from PIL import Image
model_name = "dipta007/BartaLens-E2B"
model, processor = FastVisionModel.from_pretrained(
model_name,
max_seq_length=4096,
load_in_4bit=False,
dtype=torch.bfloat16,
)
processor = get_chat_template(processor, "gemma-4")
FastVisionModel.for_inference(model)
INSTRUCTION = (
"আপনি একজন অভিজ্ঞ বাংলা সংবাদ সম্পাদক। নিচের সংবাদ নিবন্ধটির জন্য একটি উপযুক্ত শিরোনাম তৈরি করুন।\n"
"\n"
"নিয়মাবলী:\n"
"- নিবন্ধের মূল ঘটনা ও তথ্য সঠিকভাবে প্রকাশ করুন; কাল্পনিক তথ্য যোগ করবেন না।\n"
"- সংবাদপত্রের সাধারণ শিরোনামের শৈলীতে, সংক্ষিপ্ত ও আকর্ষণীয়ভাবে লিখুন।\n"
"- উদ্ধৃতি চিহ্ন, মার্কডাউন, ইমোজি, তালিকা চিহ্ন (*, -), অথবা নম্বর (১., 1.) ব্যবহার করবেন না।\n"
"- কোনো ভূমিকা, ব্যাখ্যা, একাধিক বিকল্প বা অতিরিক্ত মন্তব্য যোগ করবেন না।\n"
"- শুধু শিরোনামটি একটি লাইনে লিখুন, অন্য কিছু নয়।\n"
)
def generate_headline(article: str, image: Image.Image | None = None):
"""Generate a Bengali headline for a news article."""
user_text = f"{INSTRUCTION}\nনিবন্ধ:\n{article}\n\nশিরোনাম:"
if image is None:
image = Image.new("RGB", (224, 224), color="black")
messages = [
{
"role": "user",
"content": [
{"type": "image"},
{"type": "text", "text": user_text},
],
}
]
input_text = processor.apply_chat_template(
messages, add_generation_prompt=True
)
inputs = processor(
images=[[image]],
text=[input_text],
add_special_tokens=False,
return_tensors="pt",
).to("cuda")
with torch.no_grad():
out = model.generate(
**inputs,
max_new_tokens=64,
use_cache=True,
do_sample=False,
)
headline = processor.tokenizer.decode(
out[0][inputs["input_ids"].shape[1]:],
skip_special_tokens=True,
).strip()
return headline
# Usage: text-only
article = """বাংলাদেশ জাতীয় ক্রিকেট দলের অধিনায়ক নাজমুল হোসেন শান্ত আজ
সংবাদ সম্মেলনে জানিয়েছেন, দল আগামী টেস্ট সিরিজের জন্য পুরোপুরি প্রস্তুত।
তিনি বলেন, তরুণ খেলোয়াড়দের পারফরম্যান্স দলের শক্তি বাড়িয়েছে।"""
headline = generate_headline(article)
print(headline)
# Usage: with image
# image = Image.open("news_image.jpg")
# headline = generate_headline(article, image=image)
Performance
Comparison with zero-shot baselines (Own eval, n=15,000)
| Model | ROUGE-1 | ROUGE-2 | ROUGE-L | BLEU-4 | BERTScore | METEOR |
|---|---|---|---|---|---|---|
| Qwen3.5-0.8B | 0.1546 | 0.0541 | 0.1429 | 2.14 | 0.8373 | 0.1002 |
| Qwen3.5-2B | 0.2029 | 0.0613 | 0.1821 | 1.83 | 0.8498 | 0.1191 |
| Ministral-3 3B | 0.2892 | 0.0903 | 0.2445 | 2.48 | 0.8725 | 0.1625 |
| Qwen3.5-4B | 0.2984 | 0.1065 | 0.2618 | 3.98 | 0.8729 | 0.1924 |
| Gemma4-E2B (zero-shot) | 0.3484 | 0.1507 | 0.3127 | 6.37 | 0.8874 | 0.2531 |
| BartaLens-E2B (ours) | 0.3851 | 0.1807 | 0.3551 | 10.43 | 0.8969 | 0.2644 |
Cross-dataset generalization (Shironam eval, text-only, n=15,012)
| Model | ROUGE-1 | ROUGE-2 | ROUGE-L | BLEU-4 | BERTScore | METEOR |
|---|---|---|---|---|---|---|
| Gemma4-E2B (zero-shot) | 0.3535 | 0.1526 | 0.3190 | 6.36 | 0.8883 | 0.2620 |
| BartaLens-E2B (ours) | 0.3840 | 0.1809 | 0.3553 | 11.02 | 0.8970 | 0.2590 |
Training Details
- Dataset: dipta007/shironam-pro-max (train split)
- Supervision: 50% of training samples include the news image; 50% use a black placeholder (text-only). This trains the model to be robust when no image is available.
- Early stopping: patience=3 on validation loss, eval every 200 steps
- Optimizer: AdamW, LR=5e-4, cosine schedule, warmup 5%
- Hardware: NVIDIA L40S (46 GB)
- Metrics: csebuetnlp multilingual ROUGE (Bengali stemmer), HF BLEU, BanglaBERT BERTScore, METEOR
Intended Use
- In-scope: generating concise Bengali news headlines from article text (optionally with an image), headline suggestion for editors, summarization benchmarks.
- Out-of-scope: generating headlines in other languages, creative/clickbait headline generation, summarization of non-news content.
Citation
License
Released under the Gemma License.