API price
GPT-5.5 Pro API price
By OpenAI. $30.00 per million input tokens, $180.00 per million output tokens on OpenRouter. Collected November 12, 2026.
- $30.00
- $180.00
- 1,050,000
- —
- April 24, 2026
- August 22, 2026
Last 90 days
Price changes
No price change in this window.
What the numbers say
- Context window ranks #4 of 459 models.
Closest in price
- GPT-4$30.00 / $60.00
- GPT-5.4 Pro$30.00 / $180.00
- GPT-5.2 Pro$21.00 / $168.00
- o3 Pro$20.00 / $80.00
- Claude Opus 4.1$15.00 / $75.00
- GPT-5 Pro$15.00 / $120.00