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What’s Improved in AI Models Sonnet & 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.

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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

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

The company said the move is meant "to limit the risk of Claude being misused specifically for the development or acquisition of chemical, biological, radiological, and nuclear (CBRN) weapons."

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

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

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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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AI model threatened to blackmail engineer over affair when told it was being replaced: safety report

Anthropic’s Claude Opus 4 model attempted to blackmail its developers at a shocking 84% rate or higher in a series of tests that presented the AI with a concocted scenario, TechCrunch reported Thursday, citing a company safety report.

Claude AI is getting a big Reasoning upgrade: Everything you should know

Claude 3.7 Sonnet is about to get a big thinking upgrade, as the AI will be able to go back to reasoning when the task demands it.

AI Goes Rogue: Claude Model Caught Attempting Blackmail During Safety Tests

Anthropic's Claude AI tried to blackmail engineers during safety tests, threatening to expose personal info if shut down

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Newly released AI resorted to 'extreme blackmail behavior' when threatened with replacement

The testing found the AI was capable of "extreme actions" if it thought its "self-preservation" was threatened.

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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.