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---

license: cc-by-nc-4.0

pipeline_tag: image-text-to-text


library_name: transformers

base_model:


- google/paligemma-3b-mix-448


- Qwen/Qwen2.5-7B-Instruct


- google/siglip-so400m-patch14-384


- timm/convnext_xxlarge.clip_laion2b_soup_ft_in1k

base_model_relation: merge

language:

- zho

- eng

- fra

- spa

- por

- deu

- ita

- rus

- jpn

- kor

- vie

- tha

- ara

tags:

- eagle

- VLM

---





# Eagle-2



[\[📂 GitHub\]](https://github.com/NVlabs/EAGLE)   [\[📜 Eagle2 Tech Report\]](https://github.com/NVlabs/EAGLE/blob/main/Eagle2/Eagle2_report.pdf)


[\[🗨️ Chat Demo\]](http://eagle-vlm.xyz/)  [\[🤗 HF Demo\]](TODO)  


## Introduction





We are thrilled to release our latest Eagle2 series Vision-Language Model. Open-source Vision-Language Models (VLMs) have made significant strides in narrowing the gap with proprietary models. However, critical details about data strategies and implementation are often missing, limiting reproducibility and innovation. In this project, we focus on VLM post-training from a data-centric perspective, sharing insights into building effective data strategies from scratch. By combining these strategies with robust training recipes and model design, we introduce Eagle2, a family of performant VLMs. Our work aims to empower the open-source community to develop competitive VLMs with transparent processes.











In this repo, we are open-sourcing Eagle2-9B, which strikes the perfect balance between performance and inference speed. 





























## Model Zoo


We provide the following models:





| model name         | LLM  | Vision  | Max Length| HF Link|


| ----------- | ------- |---------|-|-|


| Eagle2-1B | [Qwen2.5-0.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-0.5B-Instruct) |  Siglip    | 16K| [🤗 link](https://huggingface.co/NVIDIA/Eagle2-1B)|


| Eagle2-2B | [Qwen2.5-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-1.5B-Instruct) |  Siglip    | 16K| [🤗 link](https://huggingface.co/NVIDIA/Eagle2-2B)|


| Eagle2-9B | [Qwen2.5-7B-Instruct](https://huggingface.co/Qwen/Qwen2.5-7B-Instruct) |  Siglip+ConvNext    | 16K| [🤗 link](https://huggingface.co/NVIDIA/Eagle2-9B)|





## Benchmark Results


|          Benchmark           | MiniCPM-Llama3-V-2_5 | InternVL-Chat-V1-5 | InternVL2-8B |QwenVL2-7B| Eagle2-9B|

| :--------------------------: | :------------------: | :----------------: | :----------: |:----------: |:----------: |

|          Model Size          |         8.5B         |       25.5B        |     8.1B     | 8.3B|8.9B|

|                              |                      |                    |              | | |

|    DocVQA<sub>test</sub>     |         84.8         |        90.9        |     91.6     |**94.5**|92.6|

|    ChartQA<sub>test</sub>    |          -           |        83.8        |     83.3     |83.0|**86.4**|

|    InfoVQA<sub>test</sub>    |          -           |        72.5        |     74.8     |74.3|**77.2**|

|    TextVQA<sub>val</sub>     |         76.6         |        80.6        |     77.4     |**84.3**|83.0|

|           OCRBench           |         725          |        724         |     794      |845|**868**|

|      MME<sub>sum</sub>       |        2024.6        |       2187.8       |    2210.3    |  **2326.8**|2260|

|         RealWorldQA          |         63.5         |        66.0        |     64.4     |**70.1**|69.3|

|     AI2D<sub>test</sub>      |         78.4         |        80.7        |     83.8     | - |**83.9**|

|      MMMU<sub>val</sub>      |         45.8         |    45.2 / 46.8     | 49.3 / 51.8  |54.1|**56.1**|

|  MMBench_V11<sub>test</sub>   |               |            |     79.5     |79.4|**80.6**|


| MMVet<sub>GPT-4-Turbo</sub>  |         52.8         |        55.4        |     54.2     | 62.0|**62.2**|


|          SEED-Image          |         72.3         |        76.0        |     76.2     ||**77.1**|


|   HallBench<sub>avg</sub>    |         42.4         |        49.3        |     45.2     |**50.6**|49.3


| MathVista<sub>testmini</sub> |         54.3         |        53.5        |     58.3     |58.2|**63.8**|


| MMstar |             -    |       -      |      60.9|60.7|**62.6**|











## Quick Start











We provide a [demo inference script](./demo.py) to help you quickly start using the model. We support different input types: 


- pure text input


- single image input


- multiple image input


- video input





### 0. Install the dependencies





```bash


pip install transformers==4.37.2


pip install flash-attn


```


**Note**: Latest version of transformers is not compatible with the model.





### 1. Prepare the Model worker





<details>


  <summary>Click to expand</summary>





```python





"""


A model worker executes the model.


Copied and modified from https://github.com/OpenGVLab/InternVL/blob/main/streamlit_demo/model_worker.py


"""


# Importing torch before transformers can cause `segmentation fault`


from transformers import AutoModel, AutoTokenizer, TextIteratorStreamer, AutoConfig





import argparse


import base64


import json


import os


import decord


import threading


import time


from io import BytesIO


from threading import Thread


import math


import requests


import torch


import torchvision.transforms as T


from PIL import Image


from torchvision.transforms.functional import InterpolationMode


import numpy as np








IMAGENET_MEAN = (0.485, 0.456, 0.406)

IMAGENET_STD = (0.229, 0.224, 0.225)





SIGLIP_MEAN = (0.5, 0.5, 0.5)

SIGLIP_STD = (0.5, 0.5, 0.5)








def get_seq_frames(total_num_frames, desired_num_frames=-1, stride=-1):


    """


    Calculate the indices of frames to extract from a video.





    Parameters:


    total_num_frames (int): Total number of frames in the video.


    desired_num_frames (int): Desired number of frames to extract.





    Returns:


    list: List of indices of frames to extract.


    """


    


    assert desired_num_frames > 0 or stride > 0 and not (desired_num_frames > 0 and stride > 0)





    if stride > 0:


        return list(range(0, total_num_frames, stride))


    


    # Calculate the size of each segment from which a frame will be extracted


    seg_size = float(total_num_frames - 1) / desired_num_frames



    seq = []


    for i in range(desired_num_frames):


        # Calculate the start and end indices of each segment


        start = int(np.round(seg_size * i))


        end = int(np.round(seg_size * (i + 1)))




        # Append the middle index of the segment to the list


        seq.append((start + end) // 2)




    return seq




def build_video_prompt(meta_list, num_frames, time_position=False):


    # if time_position is True, the frame_timestamp is used.


    # 1. pass time_position, 2. use env TIME_POSITION


    time_position = os.environ.get("TIME_POSITION", time_position)

    prefix = f"This is a video:\n"


    for i in range(num_frames):


        if time_position:


            frame_txt = f"Frame {i+1} sampled at {meta_list[i]:.2f} seconds: <image>\n"


        else:


            frame_txt = f"Frame {i+1}: <image>\n"


        prefix += frame_txt


    return prefix




def load_video(video_path, num_frames=64, frame_cache_root=None):


    if isinstance(video_path, str):

        video = decord.VideoReader(video_path)


    elif isinstance(video_path, dict):


        assert False, 'we not support vidoe: "video_path" as input'


    fps = video.get_avg_fps()


    sampled_frames = get_seq_frames(len(video), num_frames)


    samepld_timestamps = [i / fps for i in sampled_frames]


    frames = video.get_batch(sampled_frames).asnumpy()


    images = [Image.fromarray(frame) for frame in frames]


    


    return images, build_video_prompt(samepld_timestamps, len(images), time_position=True)




def load_image(image):


    if isinstance(image, str) and os.path.exists(image):


        return Image.open(image)


    elif isinstance(image, dict):


        if 'disk_path' in image:

            return Image.open(image['disk_path'])


        elif 'base64' in image:


            return Image.open(BytesIO(base64.b64decode(image['base64'])))


        elif 'url' in image:


            response = requests.get(image['url'])


            return Image.open(BytesIO(response.content))


        elif 'bytes' in image:


            return Image.open(BytesIO(image['bytes']))


        else:


            raise ValueError(f'Invalid image: {image}')


    else:


        raise ValueError(f'Invalid image: {image}')




def build_transform(input_size, norm_type='imagenet'):


    if norm_type == 'imagenet':

        MEAN, STD = IMAGENET_MEAN, IMAGENET_STD


    elif norm_type == 'siglip':


        MEAN, STD = SIGLIP_MEAN, SIGLIP_STD


        


    transform = T.Compose([


        T.Lambda(lambda img: img.convert('RGB') if img.mode != 'RGB' else img),


        T.Resize((input_size, input_size), interpolation=InterpolationMode.BICUBIC),


        T.ToTensor(),


        T.Normalize(mean=MEAN, std=STD)


    ])


    return transform






def find_closest_aspect_ratio(aspect_ratio, target_ratios, width, height, image_size):

    """


    previous version mainly foucs on ratio.


    We also consider area ratio here.


    """


    best_factor = float('-inf')


    best_ratio = (1, 1)


    area = width * height


    for ratio in target_ratios:


        target_aspect_ratio = ratio[0] / ratio[1]


        ratio_diff = abs(aspect_ratio - target_aspect_ratio)


        area_ratio = (ratio[0]*ratio[1]*image_size*image_size)/ area


        """


        new area > 60% of original image area is enough.


        """


        factor_based_on_area_n_ratio = min((ratio[0]*ratio[1]*image_size*image_size)/ area, 0.6)* \


                                     min(target_aspect_ratio/aspect_ratio, aspect_ratio/target_aspect_ratio)


        


        if factor_based_on_area_n_ratio > best_factor:


            best_factor = factor_based_on_area_n_ratio


            best_ratio = ratio


        


    return best_ratio






def dynamic_preprocess(image, min_num=1, max_num=6, image_size=448, use_thumbnail=False):


    orig_width, orig_height = image.size


    aspect_ratio = orig_width / orig_height



    # calculate the existing image aspect ratio


    target_ratios = set(


        (i, j) for n in range(min_num, max_num + 1) for i in range(1, n + 1) for j in range(1, n + 1) if


        i * j <= max_num and i * j >= min_num)


    target_ratios = sorted(target_ratios, key=lambda x: x[0] * x[1])




    # find the closest aspect ratio to the target


    target_aspect_ratio = find_closest_aspect_ratio(


        aspect_ratio, target_ratios, orig_width, orig_height, image_size)




    # calculate the target width and height


    target_width = image_size * target_aspect_ratio[0]


    target_height = image_size * target_aspect_ratio[1]


    blocks = target_aspect_ratio[0] * target_aspect_ratio[1]




    # resize the image


    resized_img = image.resize((target_width, target_height))


    processed_images = []


    for i in range(blocks):


        box = (


            (i % (target_width // image_size)) * image_size,


            (i // (target_width // image_size)) * image_size,


            ((i % (target_width // image_size)) + 1) * image_size,


            ((i // (target_width // image_size)) + 1) * image_size


        )


        # split the image


        split_img = resized_img.crop(box)


        processed_images.append(split_img)


    assert len(processed_images) == blocks


    if use_thumbnail and len(processed_images) != 1:


        thumbnail_img = image.resize((image_size, image_size))


        processed_images.append(thumbnail_img)


    return processed_images




def split_model(model_path, device):



    device_map = {}


    world_size = torch.cuda.device_count()


    config = AutoConfig.from_pretrained(model_path, trust_remote_code=True)


    num_layers = config.llm_config.num_hidden_layers




    print('world_size', world_size)


    num_layers_per_gpu_ = math.floor(num_layers / (world_size - 1))


    num_layers_per_gpu = [num_layers_per_gpu_] * world_size


    num_layers_per_gpu[device] = num_layers - num_layers_per_gpu_ * (world_size-1)


    print(num_layers_per_gpu)


    layer_cnt = 0


    for i, num_layer in enumerate(num_layers_per_gpu):


        for j in range(num_layer):


            device_map[f'language_model.model.layers.{layer_cnt}'] = i


            layer_cnt += 1


    device_map['vision_model'] = device


    device_map['mlp1'] = device


    device_map['language_model.model.tok_embeddings'] = device


    device_map['language_model.model.embed_tokens'] = device


    device_map['language_model.output'] = device


    device_map['language_model.model.norm'] = device


    device_map['language_model.lm_head'] = device


    device_map['language_model.model.rotary_emb'] = device


    device_map[f'language_model.model.layers.{num_layers - 1}'] = device


    return device_map




class ModelWorker:

    def __init__(self, model_path, model_name,


                 load_8bit, device):




        if model_path.endswith('/'):


            model_path = model_path[:-1]


        if model_name is None:


            model_paths = model_path.split('/')


            if model_paths[-1].startswith('checkpoint-'):


                self.model_name = model_paths[-2] + '_' + model_paths[-1]


            else:


                self.model_name = model_paths[-1]


        else:


            self.model_name = model_name




        print(f'Loading the model {self.model_name}')




        tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True, use_fast=False)


        tokens_to_keep = ['<box>', '</box>', '<ref>', '</ref>']


        tokenizer.additional_special_tokens = [item for item in tokenizer.additional_special_tokens if item not in tokens_to_keep]


        self.tokenizer = tokenizer


        config = AutoConfig.from_pretrained(model_path, trust_remote_code=True)


        model_type = config.vision_config.model_type


        self.device = torch.cuda.current_device()


        if model_type == 'siglip_vision_model':


            self.norm_type = 'siglip'


        elif model_type == 'MOB':


            self.norm_type = 'siglip'


        else:


            self.norm_type = 'imagenet'




        if any(x in model_path.lower() for x in ['34b']):


            device_map = split_model(model_path, self.device)


        else:


            device_map = None


        


        if device_map is not None:    


            self.model = AutoModel.from_pretrained(model_path, torch_dtype=torch.bfloat16,


                                               low_cpu_mem_usage=True,


                                               device_map=device_map, 


                                               trust_remote_code=True,


                                               load_in_8bit=load_8bit).eval()


        else:


            self.model = AutoModel.from_pretrained(model_path, torch_dtype=torch.bfloat16,


                                               trust_remote_code=True,


                                               load_in_8bit=load_8bit).eval()  




        if not load_8bit and device_map is None:


            self.model = self.model.to(device)


        self.load_8bit = load_8bit


        


        self.model_path = model_path


        self.image_size = self.model.config.force_image_size


        self.context_len = tokenizer.model_max_length


        self.per_tile_len = 256




    def reload_model(self):


        del self.model


        torch.cuda.empty_cache()


        if self.device == 'auto':


            os.environ['CUDA_LAUNCH_BLOCKING'] = '1'


            # This can make distributed deployment work properly


            self.model = AutoModel.from_pretrained(


                self.model_path,


                load_in_8bit=self.load_8bit,


                torch_dtype=torch.bfloat16,


                device_map=self.device_map,


                trust_remote_code=True).eval()


        else:


            self.model = AutoModel.from_pretrained(


                self.model_path,


                load_in_8bit=self.load_8bit,


                torch_dtype=torch.bfloat16,


                trust_remote_code=True).eval()


        if not self.load_8bit and not self.device == 'auto':


            self.model = self.model.cuda()




    @torch.inference_mode()


    def generate(self, params):


        system_message = params['prompt'][0]['content']


        send_messages = params['prompt'][1:]


        max_input_tiles = params['max_input_tiles']


        temperature = params['temperature']


        top_p = params['top_p']


        max_new_tokens = params['max_new_tokens']


        repetition_penalty = params['repetition_penalty']


        video_frame_num = params.get('video_frame_num', 64)


        do_sample = True if temperature > 0.0 else False




        global_image_cnt = 0


        history, pil_images, max_input_tile_list = [], [], []


        for message in send_messages:


            if message['role'] == 'user':


                prefix = ''


                if 'image' in message:


                    for image_data in message['image']:


                        pil_images.append(load_image(image_data))


                        prefix = prefix + f'<image {global_image_cnt + 1}><image>\n'


                        global_image_cnt += 1


                        max_input_tile_list.append(max_input_tiles)


                if 'video' in message:


                    for video_data in message['video']:


                        video_frames, tmp_prefix = load_video(video_data, num_frames=video_frame_num)


                        pil_images.extend(video_frames)


                        prefix = prefix + tmp_prefix


                        global_image_cnt += len(video_frames)


                        max_input_tile_list.extend([1] * len(video_frames))


                content = prefix + message['content']


                history.append([content, ])


            else:


                history[-1].append(message['content'])


        question, history = history[-1][0], history[:-1]




        if global_image_cnt == 1:


            question = question.replace('<image 1><image>\n', '<image>\n')


            history = [[item[0].replace('<image 1><image>\n', '<image>\n'), item[1]] for item in history]






        try:


            assert len(max_input_tile_list) == len(pil_images), 'The number of max_input_tile_list and pil_images should be the same.'


        except Exception as e:


            from IPython import embed; embed()


            exit()


            print(f'Error: {e}')


            print(f'max_input_tile_list: {max_input_tile_list}, pil_images: {pil_images}')


            # raise e




        old_system_message = self.model.system_message


        self.model.system_message = system_message


        


        transform = build_transform(input_size=self.image_size, norm_type=self.norm_type)


        if len(pil_images) > 0:


            max_input_tiles_limited_by_contect = params['max_input_tiles']


            while True:


                image_tiles = []


                for current_max_input_tiles, pil_image in zip(max_input_tile_list, pil_images):


                    if self.model.config.dynamic_image_size:


                        tiles = dynamic_preprocess(


                            pil_image, image_size=self.image_size, max_num=min(current_max_input_tiles, max_input_tiles_limited_by_contect),


                            use_thumbnail=self.model.config.use_thumbnail)


                    else:


                        tiles = [pil_image]


                    image_tiles += tiles


                if (len(image_tiles) * self.per_tile_len < self.context_len):


                    break


                else:


                    max_input_tiles_limited_by_contect -= 2


                


                if max_input_tiles_limited_by_contect < 1:


                    break


                    


            pixel_values = [transform(item) for item in image_tiles]


            pixel_values = torch.stack(pixel_values).to(self.model.device, dtype=torch.bfloat16)


            print(f'Split images to {pixel_values.shape}')


        else:


            pixel_values = None




        generation_config = dict(


            num_beams=1,


            max_new_tokens=max_new_tokens,


            do_sample=do_sample,


            temperature=temperature,


            repetition_penalty=repetition_penalty,


            max_length=self.context_len,


            top_p=top_p,


        )




        response = self.model.chat(


            tokenizer=self.tokenizer,


            pixel_values=pixel_values,


            question=question,


            history=history,


            return_history=False,


            generation_config=generation_config,


        )


        self.model.system_message = old_system_message


        return {'text': response, 'error_code': 0}












if __name__ == '__main__':

    parser = argparse.ArgumentParser()


    parser.add_argument('--model-path', type=str, default='nvidia/Eagle2-9B')


    parser.add_argument('--model-name', type=str, default='Eagle2-9B')


    parser.add_argument('--device', type=str, default='cuda')


    parser.add_argument('--load-8bit', action='store_true')


    args = parser.parse_args()


    print(f'args: {args}')




    worker = ModelWorker(


                         args.model_path,


                         args.model_name,


                         args.load_8bit,


                         args.device)


```


</details>






### 2. Prepare the Prompt



- Single image input

```python


prompt = [


        {'role': 'system', 'content': 'You are a helpful assistant.'},


        {'role': 'user', 'content': 'Describe this image in details.', 


            'image':[


                {'url': 'https://www.nvidia.com/content/dam/en-zz/Solutions/about-nvidia/logo-and-brand/[email protected]'}


            ],


        }


    ]


```



- Multiple image input

```python


prompt = [


        {'role': 'system', 'content': 'You are a helpful assistant.'},


        {'role': 'user', 'content': 'Describe these two images in details.', 


            'image':[


                {'url': 'https://www.nvidia.com/content/dam/en-zz/Solutions/about-nvidia/logo-and-brand/[email protected]'},


                {'url': 'https://www.nvidia.com/content/dam/en-zz/Solutions/about-nvidia/logo-and-brand/[email protected]'}


            ],


        }


    ]


```



- Video input

```python


prompt = [


        {'role': 'system', 'content': 'You are a helpful assistant.'},


        {'role': 'user', 'content': 'Describe this video in details.', 


            'video':[


                'path/to/your/video.mp4'


            ],


        }


    ]


```



### 3. Generate the response    

```python


params = {


    'prompt': prompt,


    'max_input_tiles': 24,


    'temperature': 0.7,


    'top_p': 1.0,


    'max_new_tokens': 4096,


    'repetition_penalty': 1.0,


    }


worker.generate(params)


```



## TODO

- [ ] Support vLLM Inference

- [ ] Provide AWQ Quantization Weights

- [ ] Provide fine-tuning scripts





## License/Terms of Use

- The code is released under the Apache 2.0 license as found in the [LICENSE](https://huggingface.co/NVEagle/Eagle-X5-13B-Chat/blob/main/LICENSE) file.

- The pretrained model weights are released under the [Creative Commons Attribution: Non-Commercial 4.0 International](https://spdx.org/licenses/CC-BY-NC-4.0) <br>

- The service is a research preview intended for non-commercial use only, and is subject to the following licenses and terms:

  - Model License of Qwen2.5-7B-Instruct: [Apache-2.0](https://huggingface.co/Qwen/Qwen2.5-7B-Instruct/blob/main/LICENSE)

  - Model License of PaliGemma: [Gemma license](https://ai.google.dev/gemma/terms)







## Citation



## Ethical Considerations

NVIDIA believes Trustworthy AI is a shared responsibility and we have established policies and practices to enable development for a wide array of AI applications.  When downloaded or used in accordance with our terms of service, developers should work with their internal model team to ensure this model meets requirements for the relevant industry and use case and addresses unforeseen product misuse.    



Please report security vulnerabilities or NVIDIA AI Concerns [here](https://www.nvidia.com/en-us/support/submit-security-vulnerability/).