Imagine an AI that not only corrects your grammar but does it with lightning speed. That's the promise of new research from Peking University, which introduces a clever "detect-and-correct" approach to grammar fixes. Traditional grammar checkers often stumble, either missing errors or over-correcting, leading to awkward phrasing. This new method, called DeCoGLM, takes a two-pronged approach. First, it quickly scans for potential errors, like a grammar detective. Then, it uses a powerful language model (GLM) to suggest highly targeted corrections only where needed. This focused approach is what makes it so fast. Instead of rewriting entire sentences, it surgically fixes the problem areas. The researchers tested DeCoGLM on both English and Chinese text, and it performed remarkably well, rivaling even the most advanced grammar correction systems. What's even more exciting is how this approach could turbocharge larger language models (LLMs). LLMs, like those powering chatbots, are generally good at language but sometimes struggle with the nuances of grammar. By integrating this detection-correction method, LLMs could become even more powerful writing assistants, catching and fixing errors with unprecedented accuracy and speed. While the research is still ongoing, it offers a glimpse into a future where perfect grammar is just a click away, thanks to the power of AI.