Claude Opus 5 vs Qwen 3.8 Max
The comparison
On LM Arena, Claude Opus 5 scores higher (1494 Elo vs 1490 Elo), from a larger review base (19,353 vs 6,717 Arena votes).
As of Aug 12, 2026, Claude Opus 5 is rated 1494 Elo on LM Arena (19,353 Arena votes); Qwen 3.8 Max is rated 1490 Elo on LM Arena (6,717 Arena votes). No source is blended; each stands on its own.
Claude Opus 5
1494 EloLM Arenahigher
19,353Arena voteslarger base
Qwen 3.8 Max
1490 EloLM Arena
6,717Arena votes