LIVE INTELLIGENCE · part of the Xentir AI Index

Claude Opus 4.5 vs Qwen 3.6 Plus (2026-04-02)

Claude Opus 4.5 · Anthropic, released 2025-11-24
Qwen 3.6 Plus (2026-04-02) · Alibaba, released 2026-03-31

“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 8 of 9 tracked benchmarks for both models — Claude Opus 4.5 leads on 2, Qwen 3.6 Plus (2026-04-02) leads on 6.

Benchmark	Claude Opus 4.5	Qwen 3.6 Plus (2026-04-02)	Leads
Epoch Capabilities Index (ECI)	149.6	149.2	Claude Opus 4.5
SWE-bench Verified	0.767	0.579	Claude Opus 4.5
GPQA Diamond	0.860 (32k)	0.874	Qwen 3.6 Plus (2026-04-02)
MATH Level 5	Not measured	Not measured	Not measured on both
OTIS Mock AIME 2024-2025	0.861 (32k)	0.906	Qwen 3.6 Plus (2026-04-02)
FrontierMath	0.207	0.262	Qwen 3.6 Plus (2026-04-02)
FrontierMath Tier 4	0.042	0.083	Qwen 3.6 Plus (2026-04-02)
SimpleQA Verified	0.418 (32k)	0.491	Qwen 3.6 Plus (2026-04-02)
Chess Puzzles	0.120 (32k)	0.162	Qwen 3.6 Plus (2026-04-02)

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 4.5 → · Qwen 3.6 Plus (2026-04-02) → · the full AI Model Rankings table