gpt-5.4-nano · OpenAI
GPT-5.4 nano is designed for tasks where speed and cost are most important, such as classification, data extraction, ranking, and sub-agent scenarios.
GPT-5.4 nano is designed for tasks where speed and cost are most important, such as classification, data extraction, ranking, and sub-agent scenarios.
GPT 5.4 Nano has a 400,000 token context window. It supports up to 128,000 output tokens.
On AIHubMix, GPT 5.4 Nano costs $0.2 per million input tokens and $1.25 per million output tokens. Cached input reads are billed at $0.02 per million tokens.
GPT 5.4 Nano accepts text and image input.
GPT 5.4 Nano supports tool calling, function calling, structured outputs, thinking and web search. Per-protocol parameter support is listed in the capability table on this page.
GPT 5.4 Nano is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gpt-5.4-nano — no other code changes needed.
GPT 5.4 Nano is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
GPT 5.4 Nano was released on March 17, 2026 by OpenAI.
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Use GPT 5.4 Nano via the AIHubMix unified API — one interface for every major LLM.