1. Models
  2. Claude Fable 5 vs GPT-6

5 charts

Claude Fable 5 vs GPT-6

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

Claude Fable 5GPT-6
Epoch AI scatter plot: AI model ECI trends
Epoch AI·Oct 2026
AI model ECI trends
165K views868 likes0.6% eng.
Data
Arena benchmark bar chart: Agent Arena Overall20x
Arena·Oct 2026
Agent Arena Overall
38.1K views404 likes1.2% eng.
Data
Epoch AI benchmark bar chart: AI benchmark scores
Epoch AI·Sep 2026
AI benchmark scores
34.9K views459 likes1.5% eng.
Data
Epoch AI bar chart: AI model task performance
Epoch AI·Oct 2026
AI model task performance
25.8K views383 likes1.7% eng.
Data
Epoch AI grouped bar chart: AI model replication performance
Epoch AI·Oct 2026
AI model replication performance
13.2K views129 likes1.0% eng.
Data

Questions people ask

Is Claude Fable 5 better than GPT-6?

5 charts we tracked put Claude Fable 5 and GPT-6 side by side, from Epoch AI, Arena. Which wins depends on the benchmark; each chart below shows its own test.