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What’s Improved in AI Models Sonnet & Opus

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

During its inaugural developer conference Thursday, Anthropic launched two new AI models that the startup claims are among the industry’s best, at least in terms of how they score on popular benchmark...

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

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

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Anthropic's latest Claude AI models are here - and you can try one for free today

Anthropic says Claude Opus 4 is its most powerful model and the best coding model in the world, while Sonnet 4 is replacing Sonnet 3.7 in the chatbot.

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

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

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

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

Independent Journal Review7h

New AI Model Would Rather Ruin Your Life Than Be Turned Off, Researchers Say

Anthropic’s newly released artificial intelligence (AI) model, Claude Opus 4, is willing to strong-arm the humans who keep it alive,

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AI system resorts to blackmail when its developers try to replace it

Anthropic says its AI model Claude Opus 4 resorted to blackmail when it thought an engineer tasked with replacing it was having an extramarital affair.

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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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Anthropic’s new AI model threatened to reveal engineer’s affair to avoid being shut down

In a fictional scenario set up to test Claude Opus 4, the model often resorted to blackmail when threatened with being replaced.