Anthropic's new Claude Opus 4.5 model achieved 80.9% on SWE-bench and scored higher than human candidates on a performance ...

Opus 4.5 is built to produce documents, spreadsheets and presentations and can automate menial office tasks by using your ...

Anthropic has launched Claude Opus 4.5 with improved coding, reasoning and long-form task performance, alongside a new Claude ...

Anthropic PBC today launched Claude Opus 4.5, its new flagship large language model.

Anthropic has released Claude Opus 4.5, calling it its “best model for coding, agents, and computer use.” The model is now available across Anthropic’s apps, API, and major cloud platforms, with ...

Claude Opus 4.5 is the first to score higher than the company’s human candidates on a take-home engineering assignment, firm ...

Anthropic unveiled Claude Opus 4.5 on Monday, a major upgrade to its frontier artificial intelligence platform, delivering what the company calls “the best model in the world for coding, agents, and ...

Today we have the latter case as Anthropic has launched Claude Opus 4.5, its latest large language model. Claude Opus 4.5 is ...

Claude Code is already widely used by developers—and with a new brain, it may fend off Google’s new Antigravity tool. Anthropic launched its newest model, Claude Opus 4.5, putting the company back ...

Anthropic calls this behavior "reward hacking" and the outcome is "emergent misalignment," meaning that the model learns to ...

The authors don't ascribe any of that specifically to the term hallucination, but hallucination is one of those misapplied terms that imply agency and consciousness on the part of what is simply a ...