LLMrank

The AI models we measure with

Claude Opus 5.5

Anthropic

Anthropic's flagship Claude model - the sharpest read of how the AI frontier recognises and describes your brand. Succeeds Claude Opus 5 in the Pro set, newer and 20 percent cheaper. A Pro-tier model.

Model details

Model ID
claude-opus-5.5
Context window
1M tokens

What we use this model for

We ask this model directly about your company to see how it describes you and which names it brings up in your space. It is one of several frontier models in our measurement set, so your visibility is read across the assistants people actually use rather than from a single model.

Recent updates for this model

  1. today

    Claude Opus 5.5 reportedly made significant progress on the Exponential Time Hypothesis and Yang-Mills foundations. However, Google's Gemini 4 Carbon outperformed Claude Opus 5.5 in cybersecurity and coding benchmarks.

    • Google launched Gemini 4 Carbon, which outperforms Claude Opus 5.5 in coding and cybersecurity benchmarks.
    • Claude Opus 5.5 reportedly achieved significant progress on the Exponential Time Hypothesis and Yang-Mills foundations.

    Sources: lspace@mail.beehiiv.com, cyberman@mail.beehiiv.com

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