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OpenAI

GPT-5.1 Codex Mini

openai/gpt-5.1-codex-mini

codingagenticreasoningaffordablecodex

Input price

188.4 RODI/M

~ 0.25 USD/M

Output price

1507.1 RODI/M

~ 2 USD/M

Context

400K

Max output

128K

Input:textimage
Output:text

Providers & pricing

ProviderInputOutputFree tier
Azure

Azure

Default

188.4 RODI/M~0.250 USD/M1507.1 RODI/M—
OpenAI

OpenAI

188.4 RODI/M~0.250 USD/M1507.1 RODI/M—

Pricing

RateRODIUSD (ref.)Unit
In188.4~ 0.250USD/M · RODI/M
Out1507.1~ 2.00USD/M · RODI/M
Cached18.9~ 0.0250USD/M · RODI/M

RODI prices include RodiumAi markup and upstream fees. USD figures are wholesale reference rates.

Capabilities

Streaming
Tool calling
Vision
JSON mode
Reasoning

About this model

Smaller, cost-efficient GPT-5.1 Codex for agentic coding via the Responses API.

API usage

Use the canonical slug with client.chat() or chat.completions.create().

RodiumAi SDK

Official Python, JavaScript, and Laravel SDKs — flat API aligned with this model slug.

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Compatible SDKs (OpenAI / Anthropic packages)

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