Elyse Betters Picaro/ZDNET Follow ZDNET:  Add us as a preferred source  on Google. AI labs are shipping new models nonstop. Besides being better and faster than their predecessors, however, every new model isn't guaranteed to be a major step change, despite how the company's PR may wax poetic about them. Model strengths really emerge in context: Where are competitor models lacking or excelling? Which models have outstanding specialties, and which are just catching up to industry standards?   Also:  How we test AI at ZDNET Our Model Release Tracker helps you make sense of where models stand relative to each other, and whether they're worth a deeper look. While we don't test every model or model update on this list, we'll always include the key elements you need to know, along with our hands-on expert test, where applicable. We also include an Expert Score for certain models. Curious about how we test AI?…