🔍 Perplexity AI vs ChatGPT: Which AI Tool is Better for Research Paper Writing?

When it comes to academic research and writing, AI tools like ChatGPT and Perplexity AI are becoming increasingly popular. But which of these tools provides more accurate, plagiarism-free, and high-quality content for research purposes? In this blog post, we explore a comparative analysis between these two popular AI writing tools, focusing on abstract generation and plagiarism results.

🧪 Setting Up the Comparison

To test and compare both AI tools, the same prompt was used in ChatGPT and Perplexity AI:

Prompt: "Generate an abstract in about 150 words on the title ‘Analysis and Design of Multi-Port Converter for Renewable Energy Integration and Battery Storage System.’"

The output from each tool was pasted into a Word document for further evaluation.

🤖 ChatGPT's Output

ChatGPT generated a well-structured abstract, typically split into three paragraphs. A key observation here is that specifying the word count (e.g., 150 words) in the prompt is essential. Without it, ChatGPT might generate shorter content (50–70 words), which may not meet academic journal standards. The resulting abstract from ChatGPT was found to be coherent, relevant, and adequately detailed.

🧠 Perplexity AI's Output

Perplexity AI also generated a detailed abstract for the same prompt. However, it was noted that some of the sentences closely resembled those in published research articles. This was a point of concern, prompting a plagiarism check to validate the originality of the content.

🔍 Plagiarism Check Using Copyleaks

To assess the originality of the AI-generated content, both abstracts were tested using the Copyleaks plagiarism checker.

• ChatGPT Output: Resulted in 0% plagiarism, confirming that the content was completely original and safe for academic use.

• Perplexity AI Output: Detected 40% plagiarism, showing significant similarity with existing published material.

This revealed a critical difference between the two tools in terms of content uniqueness.

📌 Insights and Recommendations

1. ChatGPT is more reliable for generating plagiarism-free content and is ideal for use in research writing without needing heavy editing.

2. Perplexity AI, while capable of generating informative content, may require paraphrasing or rephrasing (either manually or using tools) to ensure originality.

3. Always run plagiarism checks on AI-generated content before using it in academic or professional documents.

4. Consider using word-count-specific prompts to tailor your outputs more effectively to journal standards.

5. It's wise to test multiple AI tools and explore which one aligns best with your writing needs and academic integrity guidelines.

📝 Final Thoughts

As AI tools continue to evolve, it's essential for researchers and writers to understand their strengths and limitations. This video-based comparison provides valuable insights into how ChatGPT and Perplexity AI perform in the context of academic writing. While both have their uses, ChatGPT currently has the edge when it comes to generating unique, plagiarism-free research abstracts.

Use these tools wisely, and always validate before submitting your academic work!