GPT-5.1 Codex

gpt-codex

Azure Cognitive Services · gpt-5.1-codex

Capabilities

Tool CallYes

ReasoningYes

Structured OutputYes

Temperature ControlNo

AttachmentsNo

Open WeightsNo

Input

textimageaudio

Output

textimageaudio

Input$1.25

Output$10.00

Cache Read$0.13

Direct installation coming soon — March 2026

ProviderAzure Cognitive Services

Model IDgpt-5.1-codex

Familygpt-codex

Knowledge Cutoff2024-09-30

Release Date2025-11-14

Last Updated2025-11-14