Language model · by OpenAI

GPT 6 Luna,the budget brain

OpenAI's smallest GPT 6 model costs a fraction of every other main AI in Shorz — for simple, high-volume projects where every credit counts.

Cheapest
From 14 credits per 1M tokens (input)
Context · 1.05M
Positioning · Budget

Download for freeWindows 10/11 (64-bit)

See Pricing

Also available for Mac (Apple Silicon)

7-day money-back guarantee

GPT 6 Luna at a glance

GPT 6 Luna launched alongside GPT 6 Sol in September 2026 as the faster, cheaper tier under Astra. It's a much smaller model than the others in the picker, so it's best for straightforward work — simple scripts and clip passes — at the lowest per-token price in Shorz.

Specs in Shorz

Made by: OpenAI
Role in Shorz: Main AI — scripts, prompts, edit plans, agent
Context window: 1.05M tokens
Max output: 128K tokens
Released: 23 September 2026

Price in Shorz credits

14 / 68credits per 1M tokens · in / out

Input · per 1M tokens14 cr
Output · per 1M tokens68 cr

1 credit = €0.01. Prepaid packs, no subscription, credits never expire. Prices are read from the same live catalog the app uses. See packs

Why pick GPT 6 Luna in Shorz

Lowest per-token price

Cheaper than every other main AI in Shorz by a wide margin.

Same long context

Still a 1.05M-token context and 128K output.

Fast

A small model that answers quickly.

Best for

Simple scripts
Bulk clipping
Testing workflows
Tight budgets

Where GPT 6 Luna works in Shorz

Same model, no separate account: it runs on your Shorz credits wherever the app offers it.

Faceless & Script to Video

Writes the script, splits it into scenes and writes every scene's image and video prompt.

Learn more

Auto Edit

Reads the transcript and frames, plans the cuts, zooms and B-roll, then drives the editor through them.

Learn more

Clipping

Ranks the strongest moments in a long video and writes hooks and titles for each short.

Learn more

MCP & the in-app agent

The model behind the agent that operates Shorz — and switchable over MCP with set_main_ai_model.

Learn more

How to use GPT 6 Luna in Shorz

Shorz is a desktop app for Windows and Mac. Download it, sign in, and GPT 6 Luna is already in the model picker — no API key, no waitlist, no second subscription.

1Download Shorz for Windows or Mac and sign in.
2Open the main AI model picker in your project settings.
3Choose the model — the list is served live, so new releases appear without an update.
4Run the project: script, scene prompts, edit plan and titles all come from the model you picked.

GPT 6 Luna vs other language models

All language models in Shorz, with live credit prices.

Model	Best at	Context	Positioning	Credits
Claude Opus 5.5	Anthropic's Opus 5.5 — the default brain behind every Shorz project.	1M	Default	520 / 2,600 per 1M tokens · in / out
Claude Fable 5.1	Anthropic's flagship Claude 5 model, for the hardest edits and most careful judgement.	—	Flagship	1,300 / 6,500 per 1M tokens · in / out
Claude Sonnet 5.5	Anthropic's fast, efficient Claude — half the per-token price of Opus 5.5.	1M	Balanced	260 / 1,300 per 1M tokens · in / out
GPT 6.1 Sol	OpenAI's GPT 6.1 Sol — 1.05M context, priced alongside Sonnet 5.5.	1.05M	Balanced	270 / 1,350 per 1M tokens · in / out
GPT 6 Astra	OpenAI's flagship GPT 6 model — the strongest OpenAI tier in Shorz.	1.05M	Flagship	1,350 / 6,750 per 1M tokens · in / out
GPT 6 Luna	OpenAI's smallest GPT 6 model — by far the cheapest main AI in Shorz.	1.05M	Budget	14 / 68 per 1M tokens · in / out
Gemini 3.8 Flash	Google's multimodal Flash model — and the model behind free Auto Edit and Clipping runs.	1M	Free tier	195 / 975 per 1M tokens · in / out
Grok 4.3 X Search	xAI's Grok 4.3 with live X search — trend research for your AI agent.	—	Live X search	169 / 338 per 1M tokens · in / out