Kimi K3 Benchmark Results: Head-to-Head vs GPT-5.6, Fable 5, and Opus 4.8 (July 2026)

Kimi K3 benchmarks are live — #1 on SWE Marathon, BrowseComp, Frontend Code Arena, but behind on HLE-Full and DeepSWE. Full head-to-head comparison against GPT-5.6 Sol, Fable 5, Opus 4.8, with Artificial Analysis composite ranking.