Models › OpenAI
gpt-5-nano API pricing
$0.05 per 1M input tokens and $0.40 per 1M output tokens (prompts up to 272K tokens). Verified 2026-11-01 against the official price list.
Current prices
| Mode | Input | Output | Cache read |
|---|---|---|---|
| Standardprompts ≤ 272K tokens | $0.05 | $0.40 | $0.005 |
| Batch APIprompts ≤ 272K tokens | $0.025 | $0.20 | $0.0025 |
| Flexprompts ≤ 272K tokens | $0.025 | $0.20 | $0.0025 |
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