openai
OpenAI: GPT-5.5 Pro
openai/gpt-5.5-pro
For $1, you can send approximately:
~0.680messages
How do we get this number?
One message = ~7,000 input tokens + ~7,000 output tokens
Input cost per message7,000 x $30.00/M = $0.210000
Output cost per message7,000 x $180.00/M = $1.260000
Total cost per message$1.470000
Messages for $10.68
Context window
1.1M
tokens
Max response
128k
tokens
Input price
$30.00
per million tokens
Output price
$180.00
per million tokens
Modalities
Input:fileInput:imageInput:textOutput:text
Description
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...