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 context window (922K input, 128K output) with support for text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows within a single system.
Public pricing comes from the currently exposed Xenodia model catalog and already reflects the minimum visible channel pricing.
Use this model when you need a public Xenodia surface with discoverable parameters, stable routing metadata, and documented request modes instead of provider-specific guesswork.
Recommended workflow: query /v1/models, inspect this model's capabilities, then call the relevant endpoint with only documented fields.
curl -s https://api.xenodia.xyz/v1/modelsNo public parameter metadata has been published for this model yet.
This model does not currently advertise public reference input support.
gpt-5.5 is exposed through Xenodia as a public model page with pricing, modalities, parameters, and documented request modes.
gpt-5.5 does not currently advertise public task mode on Xenodia.