OpenAI
GPT-5.5
gpt
Model ID gpt-5.5
Provider OpenAI
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 920000
Output Limit 130000
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 -