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GPT 5.1 Codex Mini
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gpt-5.1-codex-mini
by
OpenAI
OpenAI
|
Created Nov 13, 2025
|
400k context
Chat Completions
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GPT-5.1-Codex-Mini is a more compact and faster variant of GPT-5.1-Codex.
Overview
Specifications
Activity
Performance
Uptime
Examples
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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
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OpenAI: GPT 5.1 Codex Mini API – Pricing, Context Window & Specifications