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Anthropic has released Claude Opus 5 at the same price as Opus 4.8 (5 USD/25 USD per million tokens), which the company says is half the price of Fable 5. It leads in agentic coding and ARC-AGI-3, while lagging in cyber exploitation and some domains such as healthcare and law.
According to TechCrunch, restrictions (guardrails) on models from Anthropic and OpenAI intended to prevent misuse for cyberattacks also hold back legitimate security researchers. The companies offer vetting programs with less restrictive limits, but researchers complain about inconsistent model behavior and bypass them with open-source…
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