LLMrank

The AI models we measure with

Claude Opus 5

Anthropic

Anthropic's flagship Claude model - the sharpest read of how the AI frontier recognises and describes your brand. A Pro-tier model.

Model details

Model ID
claude-opus-5
Context window
1M tokens
Max output
128k tokens
Knowledge cutoff
Jan 2026
Training data cutoff
Jan 2026

Knowledge cutoff vs training data cutoff

Knowledge cutoff and training data cutoff are different dates: the knowledge cutoff is roughly how current a model's world knowledge is, while the training data cutoff is when its training data ends. Both shape what a model knows about you.

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 experienced an incident involving elevated error rates on 27 July 2026, affecting claude.ai, Claude API, Claude Code, and Claude Cowork. The incident was resolved, with error levels returning to baseline by 09:03 UTC.

    • Claude Opus 5 experienced elevated errors on 2/7/2026, impacting claude.ai, Claude API, Claude Code, and Claude Cowork.
    • Anthropic resolved the Claude Opus 5 error incident, returning error levels to baseline at 09:03 UTC on 27 July 2026.
    • Anthropic priced Claude Opus 5 at $5 per million input tokens and introduced Fast mode and mid-conversation tool changes.

    Sources: noreply@statuspage.io, dan@tldrnewsletter.com

  2. 1 days ago

    Claude Opus 5 experienced a service incident on 26 July 2026, affecting five components including claude.ai, Claude Console, Claude API, Claude Code, and Claude Cowork; the issue was resolved by 10:44 UTC.

    • Resolved elevated errors for Claude Opus 5 affecting claude.ai, Claude Console, Claude API, Claude Code, and Claude Cowork on 26 July 2026.
    • Added Claude Opus 5 to LLMrank's AI visibility measurement capabilities.
    • Measured Sonetel.com with an AI visibility score of 51.1 using Claude Opus 5.
    • Evaluated Doorly.se with an AI visibility score of 10.0 using Claude Opus 5.

    Sources: noreply@statuspage.io, llmrank@mg.doable.services, hello@every.to

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