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OpenAI: GPT-5.6 Terra

openai/gpt-5.6-terra

For $1, you can send approximately:
~10.2messages

How do we get this number?

One message = ~7,000 input tokens + ~7,000 output tokens
Input cost per message7,000 x $2.00/M = $0.014000
Output cost per message7,000 x $12.00/M = $0.084000
Total cost per message$0.098000
Messages for $110.20
Context window
1.1M
tokens
Max response
128k
tokens
Input price
$2.00
per million tokens
Output price
$12.00
per million tokens

Modalities

Input:fileInput:imageInput:textOutput:text

Description

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...