GPT 5.6 Terra

openai/gpt-5.6-terra

GPT-5.6 Terra is the balanced model in OpenAI's GPT-5.6 series, positioned between flagship Sol and cost-efficient Luna. It is suited for everyday coding, reasoning, agentic work, and general professional 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: $2.2 per 1M tokens
Output: $13.2 per 1M tokens
Cache read: $0.22 per 1M tokens
Cache write: $2.75 per 1M tokens
Typical message: $0.015

Details

Provider: OpenAI
Context: 1.1M tokens
Max output: 128K tokens
Added: Jul 9, 2026
Reasoning effort: none, low, medium, high, xhigh, max

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-5.6-terra",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Pricing

Details

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