LIVE INTELLIGENCE · part of the Xentir AI Index

Claude Opus 4.7 vs Kimi K3

Name: Claude Opus 4.7 vs Kimi K3 — benchmark results
Creator: Epoch AI
License: https://creativecommons.org/licenses/by/4.0/

Claude Opus 4.7 · Anthropic, released 2026-04-16
Kimi K3 OPEN WEIGHTS · 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 2026-09-09 · Methodology · Data Sources

Kimi K3 leads on more of the 5 benchmarks where both are measured — Claude Opus 4.7 on 2, Kimi K3 on 3. The remaining 4 of 9 tracked benchmarks cannot be compared: 3 have a result for only one of the two models, 1 for neither. Nothing on this page is estimated to fill those in.

Head-to-head

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

Benchmark	Claude Opus 4.7	Kimi K3	Leads
Epoch Capabilities Index (ECI)	156.3	157.6	Kimi K3
SWE-bench Verified	0.835 (max)	Not measured	Comparison unavailable — Kimi K3 has no published result
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	Comparison unavailable — Kimi K3 has no published result
FrontierMath Tier 4	0.229 (xhigh)	Not measured	Comparison unavailable — Kimi K3 has no published result
SimpleQA Verified	0.517 (xhigh)	0.506 (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.

What remains uncertain

Kimi K3 has no published result on FrontierMath, FrontierMath Tier 4, SWE-bench Verified.
1 tracked benchmark has no published result for either model.

A missing result means Xentir has not found one published by the source it cites, not that the model performs badly. See Data Sources.

Reference price

Per 1M tokens	Claude Opus 4.7	Kimi K3
Output	$25.00 stale	—

List price as published by the vendor. Xentir does not verify negotiated or enterprise rates, and price is not a measure of capability — see Data Sources.

Full profiles

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