WHAT NEW IN X10.29 THU

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gpt-6VIDEO

OpenRouter stealth model Union Alpha identified as an OpenAI model

A developer tested the anonymous OpenRouter model Union Alpha with a standard shooter prompt, recognized the menu style as the GPT-6 Astra family, guessed it is GPT-6 Sol, and released a playable demo.

Alexey Fateev
@superaleshaArchived 2026.09.17Originally posted 2026.09.17
Alexey Fateev @superaleshaOriginally posted 2026.09.17
Open original on X

The new stealth model on OpenRouter Union Alpha is an @OpenAI model. And here's why. I gave it my standard shooter prompt and got this FPS. I've built around a dozen games with GPT-6 Astra by now. I can spot its style from a mile away. Just look at the menu. The huge title, orange button with that same arrow, tiny labels over a dark 3D scene. Ive seen this menu so many times already. My guess is GPT-6 Sol. Come on OpenAI, at least change the menu. Playable demo link as always: https://alesha-pro.github.io/bench-portal/games/voidbreaker-union-alpha/

This post quotes another post: x.com/superalesha/status/2096187831731232885

x.com/superalesha/status/2100328118326104145Archived 2026.09.17 10:16