← Artificial Acceleration
OpenAI · GPT series
GPT-5.4 mini
Released
17 Mar 2026
· 12 days after
GPT-5.4 Pro
Intelligence
—
no index score yet
Price
$1.69
per 1M tokens, 3:1 in/out · $0.75 in / $4.5 out
Speed
—
not measured
Weights
Closed
US lab
OpenAI’s best score over time
9 Jul 2026
26 Oct 2026
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GPT-5.4 Pro
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GPT-5.4 nano