GPT-5.6 Sol Ultra Hit Codex. What It Costs You
TL;DR
- GPT-5.6 Sol Ultra landed at 91.9% on Terminal-Bench 2.1. That's above plain Sol at 88.8% and GPT-5.5 at 88.0%. The win comes from spinning up parallel subagents. - Token pricing ranges from $5 in / $30 out per million for
