Anthropic Launches Opus 5.5 with Lower Prices and Improved Performance
Anthropic has released its newest AI model, Opus 5.5, offering improved performance and lower costs compared to its predecessor.
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Release of Opus 5.5
Anthropic, the AI company founded by Dario Amodei, has released Opus 5.5, the newest model in its Claude lineup.
The launch of Opus 5.5 follows two months after the release of Opus 5 and comes just as Dario Amodei is advocating for pacing the AI development to ensure safety.
Performance and Pricing
Opus 5.5 is priced at $20 per million tokens, a 20% decrease from the previous model, Opus 5, which cost $25 per million tokens.
The new model outperforms Fable 5.1 in several benchmarks, including agentic coding, computer use, and knowledge work, with a GDPval-AA v2.1 score of 1,846 compared to Fable 5.1's 1,735.
Safety and Testing
Safety remains a priority for Anthropic, and Opus 5.5 has undergone rigorous testing by outside organizations such as METR and Frontier Design.
The company notes that while Opus 5.5 is comparable to Mythos 5.1 in biology and cybersecurity, it will still be subject to the same safeguards as the Fable model to prevent misuse.
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