GPT-6 naming decoded: Sol ≈ GPT-5.6 Terra, Luna ≈ GPT-5.6 Asteroid

PawelHuryn · x · 2026-09-24

Pawel Huryn maps the rumored GPT-6 family onto existing tiers: GPT-6 Sol is roughly equivalent to GPT-5.6 Terra, while GPT-6 Luna matches GPT-5.6 Asteroid. He adds that testing showed GPT-6 Luna (max) scoring 18.3 at n=3, arguing the reported quality degradation is real. A tongue-in-cheek take on OpenAI's increasingly tangled model naming and tiering.

Related event: Leaks Map GPT-6 Codenames to GPT-5.6 Versions(3 posts)→

Original post →

More from Models

Models channel →