Anthropic
claude-sonnet-5 is a proprietary Anthropic multimodal model.
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Quality Score
1263
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 live arena signal, but it does not have structured benchmark rows or provider benchmark evidence yet.
A full normalized benchmark row is not available for this model yet.
Live arena evidence is already available below, so there is still a competitive signal even without a full benchmark table yet.
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Released
1263
ELO Score
1249 - 1277
95% Confidence
+/-14 points
2.2K
Battles
Jul 5, 2026
Last Updated