GPT 5.5

openai/gpt-5.5

GPT-5.5 is an OpenAI model, built for agentic coding, computer use, and professional knowledge work with stronger reasoning and token efficiency.

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: $5.5 per 1M tokens
Output: $33 per 1M tokens
Cache read: $0.55 per 1M tokens
Typical message: $0.038

Details

Provider: OpenAI
Context: 1.1M tokens
Max output: 128K tokens
Added: Apr 23, 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-5.5",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'