GPT-5.5 vs Kimi K3 Max
The comparison
On LM Arena, Kimi K3 Max scores higher (1487 Elo vs 1481 Elo), from a smaller review base (11,706 vs 55,130 Arena votes).
As of Aug 12, 2026, GPT-5.5 is rated 1481 Elo on LM Arena (55,130 Arena votes); Kimi K3 Max is rated 1487 Elo on LM Arena (11,706 Arena votes). No source is blended; each stands on its own.
GPT-5.5
1481 EloLM Arena
55,130Arena voteslarger base
Kimi K3 Max
1487 EloLM Arenahigher
11,706Arena votes