# Function to summarize the abstract and generate keywords using OpenAI API
def summarize_and_generate_keywords(abstract):

    # Use OpenAI Chat Completions API to summarize and generate keywords
    prompt = f"Summarize the following paper abstract and generate (no more than 5) keywords:nn{abstract}"

    # make api call
    response = openai.chat.completions.create(
        model="gpt-4o-mini",
        messages=[
            {"role": "system", "content": "You are a helpful assistant."},
            {"role": "user", "content": prompt}
        ], 
        temperature = 0.25
    )

    # extract response
    summary = response.choices[0].message.content
    return summary