OpenAIactive
GPT-5.5 Pro
Released at: May 15, 2026
API StatusAvailable for integration
Context Window1,050,000 tokens
Input Price / MTok$30.00
Output Price / MTok$180.00
Model Overview
OpenAI · Active Model
- Long-Context
- API Available
- Vetted Benchmarks
- Production Ready
- Price History Tracked
Our flagship enterprise-grade model. Unparalleled capabilities in complex programming, scientific logic, and multi-modal understanding.
- Developer
- OpenAI
- Release Date
- May 15, 2026
- Context Window
- 1,050,000 tokens≈ 1,400 words
- API Access
- Publicly AvailableIntegrate via official API
- Input Cost
- $30.00per million tokens
- Output Cost
- $180.00per million tokens
Vetted Benchmarks
mmluScore: 96.5% (Ranked top 1%)
humanevalScore: 98.2% (Ranked top 1%)
mathScore: 96% (Ranked top 1%)
gpqaScore: 89.1% (Ranked top 1%)
mt_benchScore: 9.9% (Ranked top 1%)
hellaswagScore: 99.4% (Ranked top 1%)
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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