Luna-Lisa-Alpha Release Date: What Is Actually Known (2026)
There is no luna-lisa-alpha release date. Here is what the Arena sighting was, the only number you can check, and what you can generate today.
TL;DR — There is no luna-lisa-alpha release date, and no company has announced one. The name belongs to an anonymous checkpoint seen in LMArena blind battles on August 20, 2026. The closest checkable number is a prediction market where traders put 44% odds on OpenAI shipping its next GPT Image model by August 31, and 66% by September 30.
You wanted a release date, but nobody has one. OpenAI hasn't made an announcement, and the name itself may never turn into a product.
Here's what you can check right now, and how you can run GPT Image 2 in the browser today.
One of the frames that started the talk: luna-lisa-alpha's answer to a station-at-sunset prompt, posted by the tester @visual58661 on August 20, 2026. The image is his, not ours, and it's the closest anyone gets to this model.
When is the luna-lisa-alpha release date?
There's no luna-lisa-alpha release date.
No company has scheduled a launch, and no official announcement exists. The name itself is just a test label that might never ship.
What the sighting actually was
Luna-lisa-alpha is an unreleased image model checkpoint that showed up in LMArena blind battles. In those battles, two unnamed models answer your prompt and you pick the winner.
luna-lisa-alpha is being tested , this is new checkpoint last one was monalisa
Chetaslua posted the sighting on X on August 20, 2026, where it had 131.3 thousand views. His post quoted his own August 10 post about an earlier checkpoint called mona-lisa-1.
You won't find any product details around the name:
- No API or model identifier
- No price
- No spec sheet
- No statement from OpenAI
Read our breakdown of what luna-lisa-alpha actually is to see the full background.
The only number anyone can check
The only real number comes from a prediction market on Polymarket. That's a site where people bet real money on whether something happens by a date, so the price reads as odds.
The market pays out only if OpenAI ships its next GPT Image model version 2.1 or higher by a given deadline. It doesn't track the luna-lisa-alpha name itself.
When we read the market on August 21, 2026, the August 31 bucket sat at 44% on about $2,615 of volume. That means traders lean against an August launch.
The September 30 bucket sat at 66% on about $3,383 of volume. Traders lean yes for September, but they're far from sure.
Those prices move all day. Ours are a reading, not a fixed number, so open the market if you want the live one.
The whole market, read on August 21, 2026: the question, both deadlines, both prices, and the rule that a closed beta doesn't count.
Keep the size in mind. A few thousand dollars of volume is a handful of traders, not a crowd, and nobody there has inside knowledge.
What would actually count as a launch
The market sets clear rules for what counts as a launch, which helps you tell a real release from a headline:
- The model must be made available to the general public by the target date.
- The model name or identifier must include "GPT Image" and carry a version number of 2.1 or higher.
- "A closed beta or any form of private access will not suffice."
- Size or speed variants of existing builds, such as mini or turbo editions, do not qualify.
- A product update without a new underlying model, such as a ChatGPT Images 3.0 interface update, does not qualify either.
Why a codename is not a launch date
OpenAI's published name for its current image model is gpt-image-2. That's also how it's listed on the Arena leaderboard.
Neither luna-lisa-alpha nor mona-lisa-1 has a row on the leaderboard, which listed 76 models and 5,919,946 votes in the snapshot we read.
A checkpoint is just a saved training state. It can ship as a model, get folded into another build, or get dropped.
The community invented the name "GPT Image 2.5", but no company has used it. The model you can actually run today is still GPT Image 2.
Generate stills today
We can't run luna-lisa-alpha, so we won't show you fake output images and call them its work. What you can use right now is the GPT Image 2 Generator.
GPT Image 2 on Seadanse lets you type a prompt or drop one reference image, pick an aspect ratio tile, and download your still.
It supports 1:1, 2:3, 3:2, 3:4, 4:3, 9:16, 16:9, and auto ratios, and it has no resolution setting.
GPT Image 2 on Seadanse: a prompt box, one optional reference image, and eight aspect-ratio tiles.
You can also run Nano Banana 2 at 1K, 2K, or 4K with up to 14 reference images.
Signing up is free, needs no card, and includes 60 one-time starter credits. A GPT Image 2 still costs 4 credits, so the gift covers 15 of them. See Seadanse pricing for details.
What we will update here, and when
We'll re-check this page by September 21, 2026, or sooner if a model ships.
If a GPT Image model ships, this page keeps its address and gets rewritten. Here's what changes: a new title, a present-tense opening, and the odds replaced by what actually happened.
Written by Nathan Cole. The market page and the posts cited here were opened and read on August 21, 2026.
Related articles
- What Is Luna-Lisa-Alpha? The Arena Checkpoint Everyone Calls GPT Image 2.5 — the dated posts, the leaderboard check, and what testers actually saw.
