Run Codex on GPT-5.6 Luna

Name: Codex
Author: OpenAI

by OpenAICoding agent

Codex is OpenAI's open-source coding agent for the terminal. It works from natural-language instructions to edit code across your project, run commands, and complete tasks end to end, with its source available on GitHub under Apache-2.0. On Opper, launch it on GPT, Claude, Gemini, DeepSeek and 700+ more — one key, automatic fallbacks, and a choice of region.

Run

Codexonin

Launch Codex on GPT-5.6 Luna

Set up with agents

Paste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.

Get your API key

Where you can run it

GPT-5.6 Luna runs on the routes below. Route only to EU providers when your data has to stay in Europe.

Provider	Region	Zero data retention	Training	Input	Output
Azure	EU	Zero data retention	No	$0.20	$1.20
Azure	EU	Not by default	No	$0.20	$1.20
OpenAI	US	Not by default	No	$0.20	$1.20
AWS Bedrock	Multi	Zero data retention	No	$0.20	$1.20
Azure	Multi	Zero data retention	No	$0.20	$1.20
Azure	Multi	Not by default	No	$0.20	$1.20

The model

GPT-5.6 Luna

by OpenAI

GPT-5.6 Luna, the fast high-volume tier of OpenAI's GPT-5.6 family, handles classification, summarization, and bulk pipelines with 1M context.

Available on

AWS BedrockAzureEUOpenAIUS

Pricing from$0.20/ 1M input$1.20/ 1M output1.1Mcontext

Privacy

Zero data retention: Always-on
Training: No
Region: EU + US

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