gpt-5-nano
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OpenAI model gpt-5-nano. Prices are in US dollars per million tokens.
Current price, since 2025-08-07: input $0.05, output $0.40, cached input $0.005.
Matches OpenAI's pricing page, checked 2026-10-22 21:28 UTC.
Price a request with this model.
Standard price history#
| From | Input | Cached input | Cache write | Output | Longer prompts | Dated by | Source |
|---|---|---|---|---|---|---|---|
| 2025-08-07 | $0.05 | $0.005 | $0.40 | documented | link | ||
| 2025-08-07, first record | $0.05 | $0.40 | models.dev commit | link |
Flex price history#
| From | Input | Cached input | Cache write | Output | Longer prompts | Dated by | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | $0.025 | $0.0025 | $0.20 | models.dev commit | link | ||
| first record | not sold |
A blank cache price is charged at the input price. Longer prompts list the prices for requests whose whole prompt exceeds the size given.
import model_prices
model_prices.rates("gpt-5-nano", provider="openai")