Models › OpenAI
gpt-5.5-pro API pricing
$30.00 per 1M input tokens and $180.00 per 1M output tokens (prompts up to 272K tokens). Verified 2026-11-01 against the official price list.
Current prices
| Mode | Input | Output |
|---|---|---|
| Standardprompts ≤ 272K tokens | $30.00 | $180.00 |
| Standardprompts > 272K tokens | $60.00 | $270.00 |
| Batch APIprompts ≤ 272K tokens | $15.00 | $90.00 |
| Flexprompts ≤ 272K tokens | $15.00 | $90.00 |
USD per 1M tokens.
Price history
No price change observed since tracking started on 2025-10-25.
Source
- https://developers.openai.com/api/docs/pricing — official OpenAI price list, last verified 2026-11-01