gpt-5.4-mini · OpenAI
GPT-5.4 mini is a faster, more efficient model that inherits the advantages of GPT-5.4 and is specifically optimized for high-volume workloads.
GPT-5.4 mini is a faster, more efficient model that inherits the advantages of GPT-5.4 and is specifically optimized for high-volume workloads.
GPT 5.4 Mini has a 400,000 token context window. It supports up to 128,000 output tokens.
On AIHubMix, GPT 5.4 Mini costs $0.75 per million input tokens and $4.5 per million output tokens. Cached input reads are billed at $0.075 per million tokens.
GPT 5.4 Mini accepts text and image input.
GPT 5.4 Mini supports tool calling, function calling, structured outputs and web search. Per-protocol parameter support is listed in the capability table on this page.
GPT 5.4 Mini 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-mini — no other code changes needed.
GPT 5.4 Mini is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
GPT 5.4 Mini was released on March 17, 2026 by OpenAI.
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Use GPT 5.4 Mini via the AIHubMix unified API — one interface for every major LLM.