Terra (Teen Titans) vs Ant-type Kaiju: who would win?

Terra (Teen Titans) favored — Slight edge (~55%)

Terra (Teen Titans) · DC · Base

Tier
7-C, up to 7-B
Attack Potency
Town Level+, up to City Level
Speed
Relativistic
Durability
Small Town Level

Ant-type Kaiju · Kaiju No. 8 · Base

Tier
7-C
Attack Potency
Town Level+
Speed
Subsonic
Durability
Town Level+

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.