Is Opus 4.5 really ‘the best model in the world for coding’? It just failed half my tests

November 25, 2025

Share via:

pro-work — Screenshot by David Gewirtz/ZDNET

Follow ZDNET: Add us as a preferred source on Google.

ZDNET’s key takeaways

Opus 4.5 failed half my coding tests, despite bold claims
File handling glitches made basic plugin testing nearly impossible
Two tests passed, but reliability issues still dominate the story

I’ve got to tell you: I’ve had fairly okay coding results with Claude’s lower-end Sonnet AI model. But for whatever reason, its high-end Opus model has never done well on my tests.

Usually, you expect the…

Source link

Disclaimer

We strive to uphold the highest ethical standards in all of our reporting and coverage. We StartupNews.fyi want to be transparent with our readers about any potential conflicts of interest that may arise in our work. It’s possible that some of the investors we feature may have connections to other businesses, including competitors or companies we write about. However, we want to assure our readers that this will not have any impact on the integrity or impartiality of our reporting. We are committed to delivering accurate, unbiased news and information to our audience, and we will continue to uphold our ethics and principles in all of our work. Thank you for your trust and support.

Previous News

CARE MENA – the region’s most impactful stage for climate action and clean energy innovation – kicks off on 26 November in Dubai

Next News

Buying a used phone? Here’s how to avoid scams and bad deals

ZDNet