Ask HN: Which AI model made you most productive in 2025?
Which one gave you a step-function change in how you work? Or was just a pure delight? For me it was o3. Claude Opus would've taken the honors but it came out late in the year. Many AI tools make people productive and some AI tools can make business growing. Like for me there is MS Size2Fit this tools help many fashion apparel brands and uniforms brands for Sizing issue. This make things easier and productive. You should check this out.