GPT-5.4 integrates recent advancements in reasoning, coding, and agent workflows into a single, cutting-edge model. It combines the industry-leading coding capabilities of GPT-5.3-Codex with improved performance across various tools, software environments, and specialized tasks involving spreadsheets, presentations, and documents. Ultimately, this model delivers accurate and efficient real-world tasks, providing the results you need with less iterative communication. GPT-5.4 pro is currently available only through the Responses API, enabling multi-turn model interactions before responding to API requests, with plans to support other advanced API features in the future. Because GPT-5.4 pro is designed to solve complex problems, some requests may take several minutes to complete. To avoid timeouts, try using background mode. GPT-5.4 pro supports three difficulty levels: reasoning.effort: medium, high, and xhigh.
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-5.4 is exposed through Xenodia as a public model page with pricing, modalities, parameters, and documented request modes.
gpt-5.4 does not currently advertise public task mode on Xenodia.