OpenAI: GPT-5.4 Pro
openai/gpt-5.4-pro
GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...
Modalities
TextImageFile
In / out price
₩52,650 / ₩315,900
1M
Context
1.05M
Released
Mar 6, 2026
Pricing
Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.
| Input (prompt) | ₩52,650 / 1M |
| Output (completion) | ₩315,900 / 1M |
| Cache read | ₩5,265 / 1M |
| Cache write | — |
1,000 input tokens plus 1,000 output tokens costs about ₩369.