OpenAI: GPT-5.5 Pro
openai/gpt-5.5-pro
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
Modalities
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In / out price
₩52,650 / ₩315,900
1M
Context
1.05M
Released
Apr 25, 2026
Providers
Several places host the same model. Requests are spread by priority and health, and a local GPU always goes first when one is available.
| Provider | Context | Quantization | Max output | Priority | State |
|---|---|---|---|---|---|
| OpenRouter | 1.05M | — | — | 50 | unknown |