OpenAIactive
GPT-5.5
Released at: March 12, 2026
API StatusAvailable for integration
Context Window1,050,000 tokens
Input Price / MTok$5.00
Output Price / MTok$30.00
Model Overview
Our next-generation frontier model, optimized for highly complex multimodal reasoning, advanced mathematics, and native agentic planning.
Vetted Benchmarks
mmluScore: 94.2% (Ranked top 11%)
humanevalScore: 96.8% (Ranked top 9%)
mathScore: 93.5% (Ranked top 14%)
gpqaScore: 84.2% (Ranked top 12%)
mt_benchScore: 9.7% (Ranked top 10%)
hellaswagScore: 99% (Ranked top 6%)
Input Price TrendLast 90 Days
Output Price TrendLast 90 Days
How does this model compare?
Evaluate benchmark standing and performance rankings vs all other tracked models.
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