ULTRABENCH Created by Iternal Technologies, the AI Strategy Experts

GPT-5.5

GPT-5.5 by OpenAI: intelligence index 84.8, $5.00 in / $30.00 out per 1M tokens, 1.1M context, with a source on every number.

Vendor
OpenAI
Intelligence index
84.8
Price per 1M tokens
$5.00 in · $30.00 out
Context
1.1M tokens
Released
2026-04-23

Sources