Terra is back in Codex with 2X the usage of 6.1 Sol

New modelAll users

Codex has brought back the Terra model with enhanced writing, personality, and computer use capabilities, offering 2X more usage than 6.1 Sol across API and subscriptions.

✓ Confirmed by an official source · Official source

Official post

Day 22/ Terra is back!

Our first model that is significantly better at writing, personality and nuanced understanding of requests.

Packs a punch across the board, very good at computer use, and gives 2X more usage than 6.1 Sol across API and subscriptions.
— @thsottiaux Oct 26, 2026