OpenAI: GPT-5.5
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Undisclosed
Parameters
1.1M tokens
Context Window
Proprietary
License
Apr 24, 2026
Released
💰 Pricing
Input
$5.00
per 1M tokens
Output
$30.00
per 1M tokens
API Available
This model is accessible via API for integration into your applications.
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