I built the algorithm behind ChatGPT from scratch — here's what I learned

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Learn from a first-year student's experience building the ChatGPT algorithm from scratch and gain insights into LLM development

intermediate Published 24 Mar 2026
Action Steps
  1. Build a basic transformer model using PyTorch or TensorFlow to understand the fundamentals of LLMs
  2. Run experiments with different hyperparameters to optimize model performance
  3. Configure a dataset for fine-tuning the model and apply transfer learning techniques
  4. Test the model's performance on various tasks such as text generation and conversational dialogue
  5. Apply the learned insights to develop more advanced LLM models
Who Needs to Know This

AI/ML engineers and researchers can benefit from this article to improve their understanding of LLMs and develop similar models

Key Insight

💡 Building an LLM from scratch requires careful experimentation with hyperparameters and dataset configuration

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🤖 Built ChatGPT's algorithm from scratch! 📚 Learn from my experience and improve your LLM development skills

Key Takeaways

Learn from a first-year student's experience building the ChatGPT algorithm from scratch and gain insights into LLM development

Full Article

By Tushar Singla | First Year BTech CSE (AI/ML) Student "What I cannot create, I do not...
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