Skip to content
Rapid Router
← All models

GPT 5.4 Nano

openai/gpt-5.4-nano-2026-03-17

OpenAI model · Served by OpenAI · live on the gateway

Input / 1M
$0.200
Output / 1M
$1.25
Context
400K tokens
Max output
128K tokens
Input
Text, Image, Pdf
Released
7mo ago

Pricing

Input tokens$0.200 per 1M
Output tokens$1.25 per 1M
Provider list priceExactly what your balance is debited; our fee is charged when you buy credits

About GPT 5.4 Nano

Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation

VisionReasoningTools

What it supports

  • Tool calling (function calling)
  • JSON mode and structured output
  • Image input (vision)
  • Audio input
  • Extended reasoning
  • Streaming responses
  • OpenAI SDK, Anthropic SDK and any OpenAI-compatible client

Make a request

curl https://rapidrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.4-nano-2026-03-17",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

Frequently asked

How do I call GPT 5.4 Nano through an OpenAI-compatible API?

Point any OpenAI-compatible client at https://rapidrouter.ai/api/v1 with a Rapid Router API key and set the model to openai/gpt-5.4-nano-2026-03-17. The chat completions endpoint is https://rapidrouter.ai/api/v1/chat/completions.

What is the context window of GPT 5.4 Nano?

GPT 5.4 Nano has a context window of 400,000 tokens on Rapid Router, and returns up to 128,000 output tokens per reply.

What can GPT 5.4 Nano do?

On Rapid Router, GPT 5.4 Nano supports tool calling, JSON mode, image input, extended reasoning.

More GPT models