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Claude Fable 5.1Gemini 4 Argon

Next to Claude Fable 5.1

Presets

Claude Fable 5.1

192181–203

WeightsClosed

ReleasedSep 2026

Price in / out$10 / $50

Context1M

Core tests taken4 of 8

Gemini 4 Argon

~188estimated

WeightsClosed

ReleasedSep 2026

Price in / out–

Context–

Core tests taken–

Claude Fable 5.1 and Gemini 4 Argon are too close to call (5 points apart, within the uncertainty) (one score is an estimate).

Test by testindependent results · Epoch AI

Claude Fable 5.1Gemini 4 Argon

These models share no independent tests yet.

Only tests that at least two of these models have taken. Bold rows are the core tests shown on every profile; all of these results inform the index score. Task length (METR) is listed below the chart because it is a duration, not a percentage.