> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unifically.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GPT 5.4 Nano

> OpenAI's GPT 5.4 Nano language model

GPT 5.4 Nano is OpenAI's smallest GPT 5.4 variant, designed for high-throughput, low-cost inference.

## Model

```
openai/gpt-5.4-nano
```

|              |              |
| ------------ | ------------ |
| **Provider** | OpenAI       |
| **Name**     | GPT 5.4 Nano |

## Supported Endpoints

All three API formats are supported:

* [Chat Completions](/api-reference/v1-chat-completions) — `POST /v1/chat/completions`
* [Responses](/api-reference/v1-responses) — `POST /v1/responses`
* [Messages](/api-reference/v1-messages) — `POST /v1/messages`

## Example

```bash theme={null}
curl -X POST https://api.unifically.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "openai/gpt-5.4-nano",
    "messages": [
      {"role": "user", "content": "Classify this text as positive or negative: Great product!"}
    ]
  }'
```