1. Models
  2. Grok 4 vs o3

2 charts

Grok 4 vs o3

Every chart we tracked that puts them side by side. Open one to see the test, the source and how far it travelled.

Grok 4o3
METR scatter plot: AI model task time
METR·Jul 2025
AI model task time
82.8K views311 likes0.4% eng.
Data
Epoch AI benchmark bar chart: AI model ECI scores
Epoch AI·Feb 2026
AI model ECI scores
82K views228 likes0.3% eng.
Data

Questions people ask

Is Grok 4 better than o3?

2 charts we tracked put Grok 4 and o3 side by side, from METR, Epoch AI. Which wins depends on the benchmark; each chart below shows its own test.