GPT-5.5 (xhigh)
GPT-5.5 (xhigh) is developed by OpenAI, released 2026-04-23.
Input price
$5.00 / 1M tok
Output price
$30.00 / 1M tok
Blended price
$11.25 / 1M tok
Intelligence
56.3
Coding
74.9
Math
—
Speed
0 tok/s
Time to first token
0.00s
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