GPT-5.5 Pro is a OpenAI model tracked in Zoen. It supports a 1.05M token context window. Pricing starts at $30/1M input tokens and $180/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning medium, high, xhigh. Best for reasoning-heavy tasks that need more deliberate model control.
Best forBest for reasoning-heavy tasks that need more deliberate model control.
TemperatureNot configurable
Reasoning effortmedium, high, xhigh
VerbosityNot supported
Thinking levelsNot supported
Structured outputsSupported (native)
Tool choiceSupported
Computer useNot supported
Deep researchNot supported
Memory supportSupported
Max output tokens128k
Frequently asked questions
GPT-5.5 Pro is a OpenAI model available in Zoen. GPT-5.5 Pro is a OpenAI model tracked in Zoen. It supports a 1.05M token context window. Pricing starts at $30/1M input tokens and $180/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning medium, high, xhigh.
GPT-5.5 Pro is listed at $30/1M input tokens, and $180/1M output tokens.
GPT-5.5 Pro supports a context window of 1.05M tokens in Zoen. In an agent, this determines how much conversation history, tool outputs, and retrieved documents the model can hold in a single call.
GPT-5.5 Pro supports the following capabilities in Zoen: Tool choice, Structured outputs, Reasoning medium, high, xhigh, Max output 128k.
Best for reasoning-heavy tasks that need more deliberate model control. When used in a Zoen workflow, it can be selected in any Agent block from the model picker.