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  2. Claude Fable 5 vs Claude Opus 5

2 charts

Claude Fable 5 vs Claude Opus 5

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 5Claude Opus 5
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

Questions people ask

Is Claude Fable 5 better than Claude Opus 5?

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