OpenRouterGPT-5.5 model ID, context window & pricing
gpt
Quick facts
Model ID openai/gpt-5.5
Source OpenRouter
Context Window 1050000
Pricing $5.00 input / $30.00 output per 1M tokens
Capabilities tool calling, reasoning, structured output
Model overview
GPT-5.5 is an AI model from OpenRouter with 1050000 token context window and text, image, pdf input support.
Published pricing is $5.00 input and $30.00 output per 1M tokens.
- Workloads that use text, image, pdf 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
Provider OpenRouter
Family gpt
Status -
Knowledge Cutoff 2025-12-01
Release Date 2026-04-23
Input Modalities text, image, pdf
Output Modalities text
Context Window 1050000
Input Limit 922000
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control No
Open Weights No
Input Cost / 1M tokens $5.00
Output Cost / 1M tokens $30.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.50
Cache Write Cost / 1M tokens -
Editorial take
GPT-5.5 via OpenRouter gives you access to OpenAI's flagship intelligence while keeping your provider options open.
It remains the gold standard for general-purpose reasoning, complex instruction following, and nuanced generation. Use this if you need absolute reliability and state-of-the-art capability.