Opus 5 Beats Fable 5 in 3D Physics Simulation Test, Cost Halved
Source:
x.com
Opus 5 decisively outperformed Fable 5 in the 3D destruction physics simulation task, at only half the cost. The test required four models to construct three real-world physical scenarios using HTML: a tornado, a wrecking ball, and a truck crushing a bridge. Opus 5 completed all tasks correctly, whereas Fable 5's tornado barely lifted any objects and the building collapsed on its own before the ball made contact. Opus 5 cost $1.40, while Fable 5 cost $2.82. Neither Kimi K3 nor GPT 5.6 passed the test.