GPT 5.4 Nano

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.

API Pricing

Input$0.2 / 1M tokens
Output$1.25 / 1M tokens
Cache read$0.02 / 1M tokens

Specifications

Context400K tokens
Max output128K tokens
Modalitiestext, image
CapabilitiesThinking, Streaming, Tool calling, Web search, Code interpreter, File search, Structured outputs, Prompt caching

Frequently asked questions

What is GPT 5.4 Nano?

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.

What is the context length of GPT 5.4 Nano?

GPT 5.4 Nano has a 400,000 token context window. It supports up to 128,000 output tokens.

How much does GPT 5.4 Nano cost?

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.

What modalities does GPT 5.4 Nano support?

GPT 5.4 Nano accepts text and image input.

What capabilities does GPT 5.4 Nano support?

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.

How do I call GPT 5.4 Nano via API?

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.

Who created GPT 5.4 Nano?

GPT 5.4 Nano is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

When was GPT 5.4 Nano released?

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.