GPT 5.4 Nano

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.

Vision
Reasoning
PDF input
Tool calling
Structured output

Chat with this model Create an API key

Pricing

Includes our margin. Charged per request from your balance.

Input: $0.22 per 1M tokens
Output: $1.38 per 1M tokens
Cache read: $0.022 per 1M tokens
Typical message: $0.0016

Details

Provider: OpenAI
Context: 400K tokens
Max output: 128K tokens
Added: Mar 17, 2026
Reasoning effort: none, low, medium, high, xhigh

Use it from the API

Replace $HIDE_API_KEY with a key from the Developers page. Base URL https://hide.st/api/v1.

curl https://hide.st/api/v1/chat/completions \
  -H "Authorization: Bearer $HIDE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.4-nano",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'