OpenAI: GPT-5.5
openai/gpt-5.5
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Modalities
FileImageText
In / out price
₩8,775 / ₩52,650
1M
Context
1.05M
Released
Apr 25, 2026
Pricing
Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.
| Input (prompt) | ₩8,775 / 1M |
| Output (completion) | ₩52,650 / 1M |
| Cache read | ₩878 / 1M |
| Cache write | — |
1,000 input tokens plus 1,000 output tokens costs about ₩61.43.