OpenAI
GPT-5 Nano
openai/gpt-5-nano
Input
$0.05
per 1M tokens
Output
$0.40
per 1M tokens
Cached input
$0.0050
per 1M tokens
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
- Released
- Context window
- 400K tokens
- Max output
- 128K tokens
- Input
- text, image, file
- Output
- text
- Reasoning
- Yes
Price history
No price changes since we started tracking on .
Providers on OpenRouter
4 endpoints serve this model. Uptime is OpenRouter's share of successful requests; prices per 1M tokens.
| Provider | Input | Output | Context window | Uptime 30 min | Uptime 24 h |
|---|---|---|---|---|---|
| OpenAIflexvendor's owndiscount/priority tier | $0.025 | $0.20 | 400K | — | 100% |
| Azure | $0.05 | $0.40 | 400K | 100% | 100% |
| OpenAIvendor's own | $0.05 | $0.40 | 400K | 100% | 100% |
| Azureswedencentral | $0.055 | $0.44 | 400K | 100% | 100% |