Claude Opus 5.5

Anthropic · anthropic/claude-opus-5-5

Reported benchmark scores

This card reports no benchmark scores yet, so the ranker returns it unranked, with the reason insufficient_benchmark_evidence and a null score. That is the correct answer and not a fault on the page: unranked means there is no evidence to rank on, which is a different claim from ranking last.

Not yet researched

A section with nothing to say does not render at all, so this is the one place the page names its gaps. Remember that null in this schema means nobody has looked, not that the model lacks the property.

Data

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