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OpenAI: GPT-5.6 Sol Pro

openai/gpt-5.6-sol-pro

For $1, you can send approximately:
~5.95messages

How do we get this number?

One message = ~7,000 input tokens + ~7,000 output tokens
Input cost per message7,000 x $4.00/M = $0.028000
Output cost per message7,000 x $20.00/M = $0.140000
Total cost per message$0.168000
Messages for $15.95
Context window
1.1M
tokens
Max response
128k
tokens
Input price
$4.00
per million tokens
Output price
$20.00
per million tokens

Modalities

Input:fileInput:imageInput:textOutput:text

Description

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...