Grok 4.5: benchmark results

xAI's flagship Grok 4.5 model for reasoning and general tasks. Provider: xAI. Released 2026-07-08. Access: API.

Aggregate Rating 1824 ± 5, rank #48 of 1656 rated models, from 704 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
DataSpace66.34Task accuracy (%; share of the 410 DataSpace tasks, each a q100
E-commerce Last Exam - E-commerce78.65Mean Reward (%)100
EMRB - L5 Spectrum Survey and System Design39.8Accuracy (%)100
HiEviDR-Bench (Deep Research)41.18Overall score (0-100): sum of five 0-20 dimension scores (mu100
HiEviDR-Bench - Arxiv (Deep Research)35.95Overall score (0-100): sum of five 0-20 dimension scores (mu100
HiEviDR-Bench - Wiki (Deep Research)46.41Overall score (0-100): sum of five 0-20 dimension scores (mu100
Hy-MultiTurn - Constraint Synthesis90Importance-weighted score (%) on the 35 constraint synthesis100
Hy-MultiTurn - Object Localization95.2Importance-weighted score (%) on the 35 object localization 100
Hy-MultiTurn - Reference Resolution78Importance-weighted score (%) on the 35 reference resolution100
LLM Stats (AutomationBench-AA)51.4Score (%)100
Long-Horizon Terminal-Bench50.5Mean Score (%)100
Nejumi 4 - ALT - Controllability94.73Score (%)100

Interactive version: theaggregate.ai/model?slug=grok-4-5 · How It Works · Data refreshed daily, snapshot 2026-10-20.