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Anthropic Unveils Claude Opus 5.5

Claude Opus 5.5 delivers Fable 5.1 performance – and costs 40% less

Anthropic’s newest Claude model aims to make frontier AI cheaper, faster, and safer, while giving subscribers more breathing room before those frustrating usage limits kick in.

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Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price

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Anthropic’s New Claude Opus 5.5 Matches Fable at 60% the Price

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Anthropic Releases a New ‘Safest’ A.I. Model Amid Slowdown Debate

Anthropic on Tuesday unveiled a faster and cheaper version of its flagship artificial intelligence model that it also billed as its “safest,” in its first release since its chief executive called on t...

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Anthropic unveils Claude Opus 5.5

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Anthropic releases Claude Opus 5.5 and OpenAI counters with two cheaper GPT-6 models

[Measurement] 40 trials of the same instructions on Claude Opus 5.5 and Fable 5.1 | Same accuracy, 1.7x speed, and 3.2x cost difference

Claude Opus 5.5 has become the default Opus. The official description states that it "performs at the same level as Fable 5.1 for many tasks and is 40% cheaper to operate than Opus 5." However, such descriptions do not always translate to one's own usage.

Techgenyz

Claude Opus 5.5 Isn’t Just Cheaper – Anthropic Is Adding Stronger Controls for Powerful AI Agents

Claude Opus 5.5 provide Fable 5.1-level performance on most work while Anthropic says typical workloads cost 40% less than Opus 5 with stronger agent safeguards