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
Activity
Tokens processed for this model through Reroute, per day, over the last 30 days.
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Daily token volume shows up here as soon as the first request for this model completes.