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Anthropic, Claude and models Opus

What's New in Anthropic's Claude 4 Gen AI Models?

The latest versions of Anthropic's Claude generative AI models made their debut Thursday, including a heavier-duty model built specifically for coding and complex tasks. Anthropic launched the new Claude 4 Opus and Claude 4 Sonnet models during its Code with Claude developer conference and executives said the new tools mark a significant step forward in terms of reasoning and deep thinking skills.

CNET on MSN · 12h

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Anthropic’s new Claude 4 AI models can reason over many steps

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Anthropic Releases Claude 4: What’s Improved in AI Models Sonnet & Opus

Claude 4 Debuts with Two New Models Focused on Coding and Reasoning

Anthropic says that the models set "new standards for coding, advanced reasoning, and AI agents."

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Anthropic says its new AI model can work almost an entire workday straight

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Anthropic’s Promises Its New Claude AI Models Are Less Likely to Try to Deceive You

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Anthropic adds Claude 4 security measures to limit risk of users developing weapons

The company said it was taking the measures as a precaution and that the team had not yet determined if its newst model has crossed the benchmark that would require that protection.

Anthropic faces backlash to Claude 4 Opus behavior that contacts authorities, press if it thinks you’re doing something ‘egregiously immoral’

Bowman later edited his tweet and the following one in a thread to read as follows, but it still didn't convince the naysayers.

16h

Anthropic is reversing its ban on using AI for job applications, an executive says

Anthropic, a leading AI startup, is reversing its ban on using AI for job applications, after a Business Insider report on the policy.

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Anthropic's Mike Krieger: Claude 4 'can now work for you for much longer'

Anthropic chief product officer Mike Krieger joins 'Squawk Box' to discuss the company's new gen AI model, issue around AI hallucinations, LLM competition, OpenAI's purchase of Jony Ive's design firm,

Anthropic overtakes OpenAI: Claude Opus 4 codes seven hours nonstop, sets record SWE-Bench score and reshapes enterprise AI

Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and record-breaking 72.5% SWE-bench score, transforming AI from quick-response tool to day-long collaborator.

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Artificial intelligence

Sonnet 4

Opus

17h

Claude 4 AI will try to report you to authorities if it thinks you’re doing shady stuff

Anthropic's most powerful model yet, Claude 4, has unwanted side effects: The AI can report you to authorities and the press.

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Claude 4 Tests the Boundaries of Goal-oriented AI

Anthropic's newest editon of its flagship AI product will address significant limitations in current large language models.

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Lawyer admits ‘embarrassing’ mistake after Anthropic’s Claude made up a source in a legal filing—and no one caught it

Anthropic’s attorney admitted to using an imagined source in an ongoing legal battle between the AI company and music publishers Universal Music Group, Concord, and ABKCO Music & Records. The result of the error was that Anthropic data scientist Olivia Chen was accused of citing a made-up academic report to strengthen an argument.