Skip to content
The Decoder· Matthias Bastian·· 5 h ago

Chinese AI model Kimi K3.1 Pro is closing in on Anthropic's Claude Opus 5.5

Chinese AI model Kimi K3.1 Pro is closing in on Anthropic's Claude Opus 5.5

AI summary

Moonshot AI's Kimi K3.1 Pro scores 55 points on the Artificial Analysis Intelligence Index, an 11-point jump over its predecessor that puts it in fourth place. Only three Anthropic and Meta models rank higher. If Moonshot releases the weights as planned, the gap between open and proprietary models shrinks to just three points.

Selection record

AdmittedSum of both 164 ≥ twice the threshold 152

Source tier
Media and individuals; this tier's threshold is 76
Pre-filter
passed:中国AI模型Kimi发布及评测对比
Why it was chosen
Gives a benchmark-by-benchmark comparison of K3.1 Pro and Claude Opus 5.5, showing where the open and proprietary frontier models diverge.

A model scores each item twice, independently, against one written standard, out of 100. An item is admitted only when the two scores add up to twice the threshold. The threshold is set per source tier.

Source: The Decoder · the-decoder.com