OpenRouterGPT-5.5 Pro model ID, context window & pricing
gpt-pro
Quick facts
Model ID openai/gpt-5.5-pro
Source OpenRouter
Context Window 1050000
Pricing $30.00 input / $180.00 output per 1M tokens
Capabilities tool calling, reasoning, structured output
Model overview
GPT-5.5 Pro is an AI model from OpenRouter with 1050000 token context window and pdf, image, text input support.
Published pricing is $30.00 input and $180.00 output per 1M tokens.
- Workloads that use pdf, image, text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/gpt-5.5-pro
Provider OpenRouter
Family gpt-pro
Status -
Knowledge Cutoff 2025-12-01
Release Date 2026-04-23
Input Modalities pdf, image, text
Output Modalities text
Context Window 1050000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control No
Open Weights No
Input Cost / 1M tokens $30.00
Output Cost / 1M tokens $180.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -