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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? Check out this breakdown of our process.
Here are some of the biggest model releases of 2026 so far and what to know about them. We'll update this list whenever a notable new model arrives.
Claude Opus 4.8
Anthropic | May 28, 2026
What it does: Replacing Opus 4.7 starting today (at the same price), Opus 4.8 offers faster thinking modes for one-third the cost of the earlier version, according to Anthropic. Like most of Anthropic's models, 4.8 prioritizes coding abilities, scoring higher than 4.7 on two coding benchmarks but not fully besting OpenAI's GPT 5.5. It also "reaches new highs on our measures of prosocial traits like supporting user autonomy and acting in the user's best interest," the company noted in the release, though definitions for what that means remain murky.
Also: Anthropic launches Opus 4.8, with honesty as its killer feature
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