Up to four models

Compare

Side by side on the same independent tests, with price and context. The link in your address bar shares this exact comparison.

Kimi K3Muse Spark 1.3

Next to Kimi K3

Presets

Kimi K3

172161–183

WeightsOpen

ReleasedJul 2026

Price in / out$0.35 / $10

Context1.05M

Core tests taken4 of 8

Muse Spark 1.3

170159–182

WeightsClosed

ReleasedSep 2026

Price in / out$1.25 / $4.25

Context1.05M

Core tests taken2 of 8

Kimi K3 and Muse Spark 1.3 are too close to call (2 points apart, within the uncertainty), ahead on 0 of 2 shared core tests, at 1.4× the price.

Test by testindependent results · Epoch AI

Kimi K3Muse Spark 1.3

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.