Models
Playground
Chat
Docs
GPT 5.1 Codex Mini
Chat Completions
gpt-5.1-codex-mini
by
OpenAI
|
Created Nov 13, 2025
|
400k context
Chat Completions
Try In Playground
GPT-5.1-Codex-Mini is a more compact and faster variant of GPT-5.1-Codex.
Overview
Specifications
Activity
Performance
Uptime
Examples
Try In Playground
Pricing
-50%
Pay-as-you-go rates for this model. More details can be found
here
.
Input Tokens (1M)
$0.13
Cached Input Tokens (1M)
$0.01
Output Tokens (1M)
$1.00
Capabilities
Input Modalities
Text
Image
Output Modalities
Text
Supported Parameters
Available parameters for API requests
Frequency Penalty
Function Call
Functions
Logit Bias
Max Completion Tokens
Parallel Tool Calls
Prediction
Presence Penalty
Reasoning Effort
Response Format
Stop
Tool Choice
Tools
Web Search Options
Try In Playground
Try In Playground
GPT 5.1 Codex Mini Chat Completions API – Pricing, Context Window & Specifications
