Anthropic
claude-opus-4-8-to-claude-opus-5 is a proprietary Anthropic multimodal model.
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Quality Score
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Arena ELO
Undisclosed
Parameters
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Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
Claude-Opus-4 - LiveCodeBench
LiveCodeBench pass@1 62.4 across 1055 tasks
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