Available now
OpenAI
gpt-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
TextReasoningToolsFilesVision1.1M
Input$0.25/ 1M
Output$1.50/ 1M
Endpointsopenai, openai-response, openai-response-compact, anthropic
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Pricing
| Input price | $0.25 / 1M tokens |
| Output price | $1.50 / 1M tokens |
| Compatible endpoints | openai, openai-response, openai-response-compact, anthropic |
| Vendor | OpenAI |
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Call gpt-5.4 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",
"messages": [{"role": "user", "content": "Hello!"}]
}'§ 03
Frequently asked questions
How much does gpt-5.4 cost per 1M tokens?
Input is priced at $0.25 per 1M tokens, output at $1.50 per 1M tokens. Billing is per token, no rounding to batch sizes.
How do I access gpt-5.4 via API?
Send requests to the UnoRouter /v1/chat/completions endpoint with model=gpt-5.4. Any OpenAI-compatible client library works. Authentication uses a standard Bearer token.
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