LIVE INTELLIGENCE · part of the Xentir AI Index

Claude Opus 4.7 vs Kimi K3

Claude Opus 4.7 · Anthropic, released 2026-04-16
Kimi K3 · Moonshot, released 2026-07-16

“Epoch AI, 'AI Benchmarking Hub'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource].” · epoch.ai/benchmarks · Licensed CC BY 4.0 · data last verified 2026-07-26 · Methodology · Data Sources

Head-to-head

Measured on 5 of 9 tracked benchmarks for both models — Claude Opus 4.7 leads on 3, Kimi K3 leads on 2.

Benchmark	Claude Opus 4.7	Kimi K3	Leads
Epoch Capabilities Index (ECI)	156.1	155.6	Claude Opus 4.7
SWE-bench Verified	0.835 (max)	Not measured	Not measured on both
GPQA Diamond	0.902 (xhigh)	0.931 (max)	Kimi K3
MATH Level 5	Not measured	Not measured	Not measured on both
OTIS Mock AIME 2024-2025	0.978 (xhigh)	0.972 (max)	Claude Opus 4.7
FrontierMath	0.438 (xhigh)	Not measured	Not measured on both
FrontierMath Tier 4	0.229 (xhigh)	Not measured	Not measured on both
SimpleQA Verified	0.506 (xhigh)	0.427 (max)	Claude Opus 4.7
Chess Puzzles	0.300 (xhigh)	0.390 (max)	Kimi K3

Benchmark results measure specific tasks and should not be treated as a universal measure of model quality. A model with no row here for a benchmark has not been measured on it — that is left blank, never estimated.

Full profiles

Claude Opus 4.7 → · Kimi K3 → · the full AI Model Rankings table