← Artificial Acceleration
OpenAI · GPT series
GPT-5.3 Codex
Released
5 Feb 2026
· 56 days after
GPT-5.2 Codex
Intelligence
—
no index score yet
Price
$4.81
per 1M tokens, 3:1 in/out · $1.75 in / $14 out
Speed
79
output tokens/s, median
Weights
Closed
US lab
OpenAI’s best score over time
9 Jul 2026
26 Oct 2026
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GPT-5.2 Codex
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GPT-5.4