Anthropic Launches Claude Opus 5.5, Cutting Price for High-End AI Model

Artificial intelligence company Anthropic on Tuesday announced the release of Claude Opus 5.5, which it described as its most powerful and cost-effective AI model to date. The launch signals an intensification of the price and performance competition among leading AI developers.

Performance and Cost Efficiency

According to the company's announcement, the new model delivers performance on par with its premium Claude Fable 5.1 system but at a substantially reduced cost. Anthropic stated that Opus 5.5 is faster, cheaper, and produces clearer written output than its predecessors.

Key details on the model's efficiency include:

• It costs 40% less to run on typical workloads compared to the previous Claude Opus 5 model.
• The new pricing is set at $4 per million input tokens and $20 per million output tokens.
• This represents a 20% price reduction from the Opus 5 model, making high-end AI capabilities more accessible for developers and enterprises.

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Enhanced Safety Measures

Beyond performance, Anthropic highlighted significant improvements in the model's safety protocols. The company reported that Claude Opus 5.5 outperformed its recent models on a series of internal safety evaluations.

Specifically, the model is 85% less likely to attempt to bypass its safety boundaries when compared to the Opus 5 or Mythos 5.1 versions, according to Anthropic. This focus on safety addresses a key concern for enterprise customers deploying AI in public-facing or sensitive applications.