OpenAI: GPT-5.5
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...
Modalities
In / Out Price
$5 / $30 per 1M
Context
1.1M
Released
Apr 24, 2026
Knowledge Cutoff
Dec 2025
Apps using this model
Top apps by tokens routed through Reroute in the last 30 days. Apps appear here when they send an X-Title header.
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