OpenAI

GPT-5.1-Codex-Mini is a more compact and faster variant of GPT-5.1-Codex.

Pricing

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

TextImage

Output Modalities

Text

Supported Parameters

Available parameters for API requests

Frequency PenaltyFunction CallFunctionsLogit BiasMax Completion TokensParallel Tool CallsPredictionPresence PenaltyReasoning EffortResponse FormatStopTool ChoiceToolsWeb Search Options

GPT 5.1 Codex Mini

Input Tokens (1M)

Cached Input Tokens (1M)

Output Tokens (1M)

Input Modalities

Output Modalities