GPT-5.5 Pro API Pricing and Cost Calculator
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding
- Input / 1M tokens
- $30.00
- Cached input / 1M tokens
- —
- Output / 1M tokens
- $180.00
- Context window
- 1.05M
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding