OpenAI: GPT-5 Nano
openai/gpt-5-nano
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...
Modalities
TextImageFile
In / out price
₩88 / ₩702
1M
Context
400K
Released
Aug 8, 2025
Pricing
Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.
| Input (prompt) | ₩88 / 1M |
| Output (completion) | ₩702 / 1M |
| Cache read | ₩8.78 / 1M |
| Cache write | — |
1,000 input tokens plus 1,000 output tokens costs about ₩0.78975.