GPT-5.4 Pro

by OpenAI · chat

GPT-5.4 Pro by OpenAI — Access via Apertis API. Input: $0.0240/1M tokens, Output: $0.1440/1M tokens. Context: 1.1M tokens. OpenAI-compatible API with 50% cost savings.

Pricing

InputOutputContext Window
$0.0240 / 1M tokens$0.1440 / 1M tokens1.1M tokens

Quick Start

Use the Apertis API (OpenAI-compatible) to access GPT-5.4 Pro:

curl https://api.apertis.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gpt-5.4-pro", "messages": [{"role": "user", "content": "Hello!"}]}'

Features