Vercel AI Gateway
GPT-5.3 Chat
gpt
Model ID openai/gpt-5.3-chat
Provider Vercel AI Gateway
Family gpt
Status -
Knowledge Cutoff -
Release Date 2026-03-03
Input Modalities text, image, pdf
Output Modalities text
Context Window 128000
Input Limit 111616
Output Limit 16384
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $1.75
Output Cost / 1M tokens $14.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.17
Cache Write Cost / 1M tokens -