The JSONify-Flux-Large model is a fine-tuned version of Qwen2VL, specifically trained on Flux-generated images and their corresponding captions. This model has been trained using a 30M trainable parameter dataset and is designed to output responses in structured JSON format while maintaining state-of-the-art performance in Optical Character Recognition (OCR), image-to-text conversion, and math problem-solving with LaTeX formatting.

Key Enhancements:

Optimized for Flux-Generated Image Captioning: JSONify-Flux-Large has been trained to understand and describe images created using Flux-based generation techniques.
State-of-the-Art Image Understanding: Built on Qwen2VL's architecture, JSONify-Flux-Large excels in visual reasoning tasks like DocVQA, RealWorldQA, MTVQA, and more.
Formatted JSON Output: Responses are structured in a JSON format, making it ideal for automation, database storage, and further processing.
Multilingual Support: Recognizes and extracts text from images in multiple languages, including English, Chinese, Japanese, Arabic, and various European languages.
Supports Multi-Turn Interactions: Maintains context in conversations and can provide extended reasoning over multiple inputs.

How to Use

python

from transformers import Qwen2VLForConditionalGeneration, AutoTokenizer, AutoProcessor
from qwen_vl_utils import process_vision_info

# Load the model on the available device(s)
model = Qwen2VLForConditionalGeneration.from_pretrained(
    "prithivMLmods/JSONify-Flux-Large", torch_dtype="auto", device_map="auto"
)

# Enable flash_attention_2 for better acceleration and memory efficiency
# model = Qwen2VLForConditionalGeneration.from_pretrained(
#     "prithivMLmods/JSONify-Flux-Large",
#     torch_dtype=torch.bfloat16,
#     attn_implementation="flash_attention_2",
#     device_map="auto",
# )

# Default processor
processor = AutoProcessor.from_pretrained("prithivMLmods/JSONify-Flux-Large")

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-VL/assets/demo.jpeg",
            },
            {"type": "text", "text": "Describe this image in JSON format."},
        ],
    }
]

# Prepare inputs for inference
text = processor.apply_chat_template(
    messages, tokenize=False, add_generation_prompt=True
)
image_inputs, video_inputs = process_vision_info(messages)
inputs = processor(
    text=[text],
    images=image_inputs,
    videos=video_inputs,
    padding=True,
    return_tensors="pt",
)
inputs = inputs.to("cuda")

# Inference: Generate JSON-formatted output
generated_ids = model.generate(**inputs, max_new_tokens=128)
generated_ids_trimmed = [
    out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output_text = processor.batch_decode(
    generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
)

print(output_text)  # JSON-formatted response

JSON Buffer Handling

python

buffer = ""
for new_text in streamer:
    buffer += new_text
    buffer = buffer.replace("<|im_end|>", "")
    yield buffer

Key Features

Flux-Based Vision-Language Model:
- Specifically trained on Flux-generated images and captions for precise image-to-text conversion.
Optical Character Recognition (OCR):
- Extracts and processes text from images with high accuracy.
Math and LaTeX Support:
- Solves math problems and outputs equations in LaTeX format.
Structured JSON Output:
- Ensures outputs are formatted in JSON, making it suitable for API responses and automation tasks.
Multi-Image and Video Understanding:
- Supports analyzing multiple images and video content up to 20 minutes long.
Secure Weight Format:
- Uses Safetensors for enhanced security and faster model loading.