Available now
OpenAI
gpt-5.4-nano
GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...
TextReasoningToolsFilesVision400K
Input$0.02/ 1M
Output$0.15/ 1M
Context400K
Endpointsopenai-response, openai-response-compact, anthropic, openai
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Pricing
| Input price | $0.02 / 1M tokens |
| Output price | $0.15 / 1M tokens |
| Context window | 400K tokens |
| Compatible endpoints | openai-response, openai-response-compact, anthropic, openai |
| Vendor | OpenAI |
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Call gpt-5.4-nano from your code
Point any OpenAI-compatible SDK at UnoRouter and request the model by name. Replace YOUR_API_KEY with a real key from your dashboard.
bash
curl https://api.unorouter.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.4-nano",
"messages": [{"role": "user", "content": "Hello!"}]
}'§ 03
Frequently asked questions
How much does gpt-5.4-nano cost per 1M tokens?
Input is priced at $0.02 per 1M tokens, output at $0.15 per 1M tokens. Billing is per token, no rounding to batch sizes.
How do I access gpt-5.4-nano via API?
Send requests to the UnoRouter /v1/chat/completions endpoint with model=gpt-5.4-nano. Any OpenAI-compatible client library works. Authentication uses a standard Bearer token.
What is the context window of gpt-5.4-nano?
gpt-5.4-nano supports a context window of 400K tokens, shared between your prompt and the model's response.
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