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Anthropic's New Opus 5 Model Rivals Fable 5 For Half the Price

calendar_today July 24, 2026 person BeauHD domain slashdot

Anthropic has released Opus 5, a new Claude model that it says comes close to its higher-end Fable 5 model at half the price while improving on Opus 4.8 in knowledge work, coding, and scientific research tasks. “At the same time, Anthropic says it has managed to make the model more resistant to being tricked,” notes Engadget. Additionally, the company says Opus 5 “exhibits the lowest rates of deceptive behavior.” From the report: One important distinction between Opus 5 and Mythos, which is currently only available to a limited number of vetted organizations through Anthropic’s Project Glasswi

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