LIVE INTELLIGENCE · part of the Xentir AI Index

Grok 4.3 Beta vs Qwen 3.6 Plus (2026-04-02)

Grok 4.3 Beta · xAI, released 2026-04-17
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 5 of 9 tracked benchmarks for both models — Grok 4.3 Beta leads on 3, Qwen 3.6 Plus (2026-04-02) leads on 2.

Benchmark	Grok 4.3 Beta	Qwen 3.6 Plus (2026-04-02)	Leads
Epoch Capabilities Index (ECI)	149.0	149.2	Qwen 3.6 Plus (2026-04-02)
SWE-bench Verified	Not measured	0.579	Not measured on both
GPQA Diamond	0.888 (high)	0.874	Grok 4.3 Beta
MATH Level 5	Not measured	Not measured	Not measured on both
OTIS Mock AIME 2024-2025	0.933 (high)	0.906	Grok 4.3 Beta
FrontierMath	Not measured	0.262	Not measured on both
FrontierMath Tier 4	Not measured	0.083	Not measured on both
SimpleQA Verified	0.380 (high)	0.491	Qwen 3.6 Plus (2026-04-02)
Chess Puzzles	0.250 (high)	0.162	Grok 4.3 Beta

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

Grok 4.3 Beta → · Qwen 3.6 Plus (2026-04-02) → · the full AI Model Rankings table