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app.py
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import gradio as gr
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import os
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from openai import OpenAI
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import base64
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from PIL import Image
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import io
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# OpenRouter API key
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OPENROUTER_API_KEY = "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"
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# Available models
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MODELS = {
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"Mistral Small": "mistralai/mistral-small-3.2-24b-instruct:free",
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"Kimi Vision": "moonshotai/kimi-vl-a3b-thinking:free",
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"Gemini Pro": "google/gemini-2.5-pro-exp-03-25",
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"Qwen VL": "qwen/qwen2.5-vl-32b-instruct:free",
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"Mistral 3.1": "mistralai/mistral-small-3.1-24b-instruct:free",
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"Gemma": "google/gemma-3-4b-it:free",
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"Llama 3.2 Vision": "meta-llama/llama-3.2-11b-vision-instruct:free",
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}
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def image_to_base64(image):
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"""Convert an image to base64 encoding"""
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# If image is a file path
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if isinstance(image, str):
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with open(image, "rb") as img_file:
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return base64.b64encode(img_file.read()).decode()
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# If image is already a PIL Image
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buffered = io.BytesIO()
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image.save(buffered, format="JPEG")
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return base64.b64encode(buffered.getvalue()).decode()
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def analyze_image(image, prompt, model_name):
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"""Analyze an image using the selected OpenRouter model"""
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try:
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# Initialize OpenAI client with OpenRouter base URL
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client = OpenAI(
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base_url="https://openrouter.ai/api/v1",
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api_key=OPENROUTER_API_KEY,
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)
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# Convert image to base64
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img_base64 = image_to_base64(image)
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# Create the completion request
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completion = client.chat.completions.create(
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extra_headers={
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"HTTP-Referer": "https://gradio-openrouter-interface.com",
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"X-Title": "Gradio OpenRouter Interface",
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},
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model=MODELS[model_name],
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messages=[
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{
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"role": "user",
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"content": [
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{
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"type": "text",
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"text": prompt
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},
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{
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"type": "image_url",
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"image_url": {
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"url": f"data:image/jpeg;base64,{img_base64}"
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}
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}
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]
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}
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]
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)
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# Return the model's response
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return completion.choices[0].message.content
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except Exception as e:
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return f"Error: {str(e)}"
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# Create the Gradio interface
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with gr.Blocks(title="OpenRouter AI Vision Interface", css="style.css", theme=gr.themes.Soft()) as demo:
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gr.Markdown(
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"""
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# 🔍 OpenRouter AI Vision Interface
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Upload an image and ask a question about it. The AI will analyze the image and respond.
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*Powered by OpenRouter API with multiple vision-language models*
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"""
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)
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with gr.Row():
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with gr.Column():
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# Input components with custom styling
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with gr.Box(elem_classes=["input-container"]):
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image_input = gr.Image(type="pil", label="Upload Image", elem_classes=["image-upload-container"])
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prompt_input = gr.Textbox(label="Your Question", placeholder="What is in this image?", value="What is in this image?")
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model_dropdown = gr.Dropdown(
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choices=list(MODELS.keys()),
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value="Mistral Small",
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label="Select AI Model",
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info="Choose from different vision-language models"
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)
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submit_button = gr.Button("Analyze Image", variant="primary")
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with gr.Column():
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# Output component with custom styling
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with gr.Box(elem_classes=["output-container"]):
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output_text = gr.Textbox(label="AI Response", lines=12)
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gr.Markdown(
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"""
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### Available Models
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- **Mistral Small**: Powerful vision-language model from Mistral AI
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- **Kimi Vision**: Specialized vision model from Moonshot AI
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- **Gemini Pro**: Google's advanced multimodal model
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- **Qwen VL**: Alibaba's vision-language model
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- **Mistral 3.1**: Earlier version of Mistral's vision model
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- **Gemma**: Google's lightweight vision model
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- **Llama 3.2 Vision**: Meta's vision-enabled large language model
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"""
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)
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# Set up the submit action
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submit_button.click(
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fn=analyze_image,
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inputs=[image_input, prompt_input, model_dropdown],
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outputs=output_text
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)
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# Add example
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gr.Examples(
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examples=[
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["examples/nature.jpg", "What is in this image?", "Mistral Small"],
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["examples/nature.jpg", "Describe this scene in detail", "Kimi Vision"],
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],
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inputs=[image_input, prompt_input, model_dropdown],
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)
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# Create examples directory if it doesn't exist
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os.makedirs("examples", exist_ok=True)
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# For Hugging Face Spaces compatibility
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if __name__ == "__main__":
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# Launch the interface
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demo.launch(share=True)
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else:
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# For Hugging Face Spaces, we need to expose the app
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app = demo.launch(share=False, show_api=False)
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