Blog | Hemang Baldha - AI Engineering Notes

05the blog

Writing & Notes

Long-form notes on AI engineering, side projects, and lessons learned along the way.

Jul 26, 20268 min read

BERT vs GPT: What's the Difference? A Beginner-Friendly Guide with Real Examples

Ever wondered why BERT understands text so well while GPT writes like a human? 🤔 Learn the difference through simple examples, funny analogies, and real-world use cases and without the confusing AI jargon.

Artificial IntelligenceMachine LearningNLPBERTGPTTransformers

Jul 13, 202612 min read

Fine-Tuning Is a Subscription, Not a Purchase

At 2 a.m. my fine-tuned model beat the baseline on every metric I had, and I felt nothing. Three days later users told me it was worse. They were right. Here's what a week of figuring out why taught me about what fine-tuning actually does - and the parts nobody says out loud.

fine-tuningllmsragmlops