NanoGPT
GPT-5 Codex
gpt-codex
Model ID openai/gpt-5-codex
Provider NanoGPT
Family gpt-codex
Status -
Knowledge Cutoff -
Release Date 2025-09-15
Input Modalities text
Output Modalities text
Context Window 256000
Input Limit 256000
Output Limit 32768
Tool Calling No
Reasoning No
Structured Output No
Temperature Control -
Open Weights No
Input Cost / 1M tokens $10.00
Output Cost / 1M tokens $19.99
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -