It’s probably unary interpreted as binary, hence there is no level 2. Level 3 is followed by level 7. Level n is followed by level 2n + 1. Exponential growth. The singularity is near.

Still waiting for the output of that agent

LLMs can't count well.

There isn't one. Level 3 is just that much more advanced.

We dropped it before level 3 was released.