OpenAI · GPT series

GPT-5.6 Terra

Released 9 Jul 2026 · 14 days after GPT-5.6 Sol

a new all-time high across the nine labsnotable release

The middle tier — dropped in the next generation.

Intelligence

32.3

#1 of 4 scored releases to that date

Price

$4.50

per 1M tokens, 3:1 in/out · $2 in / $12 out

Speed

—

not measured

Weights

Closed

US lab

OpenAI’s best score over time