← Artificial Acceleration
OpenAI · GPT series

GPT-5.1 Codex

Released 13 Nov 2025 · 0 days after GPT-5.1
Intelligence
—
no index score yet
Price
$3.44
per 1M tokens, 3:1 in/out · $1.25 in / $10 out
Speed
—
not measured
Weights
Closed
US lab

OpenAI’s best score over time

9 Jul 202626 Oct 2026
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