ZenMux
GPT-5.3 Chat
models.dev synced record
Model ID openai/gpt-5.3-chat
Provider ZenMux
Family -
Status -
Knowledge Cutoff 2025-08-31
Release Date 2026-03-20
Input Modalities text
Output Modalities text
Context Window 128000
Input Limit -
Output Limit 16380
Tool Calling Yes
Reasoning No
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 -
Cache Write Cost / 1M tokens -