Union Alpha on OpenRouter: Tests and Reviews

A side-by-side test shows Union Alpha completing the same task with less than a third of the tokens used by GPT-6 Astra and in under half the time.

The author says these game demos were all generated by Union Alpha, now free in Grotto Studio, at roughly 1–5 cents per asset, and shares a demo they iterated on.

With the same prompt and no harness, Union Alpha's 3D handling is said to be clearly stronger than DeepSeek 4.1 Flash.

OrcaRouter has launched a free stealth Union Alpha endpoint with 262K context, text and image input, tool calling and structured outputs, compatible with the OpenAI API.

The author says Union Alpha is free on opencode and pairs with deepseek-v4.1 flash as subagents, matching GPT-6 Astra at 18x lower price, and gives an 18-second Codex setup.

On the same prompt, M3 cost $0.4 and finished in 12 minutes while Union Alpha was free and finished in 8 minutes; the author calls M3 the clear winner but sees potential in Union Alpha.

A critic says it was not made clear from the start that Union Alpha is a router, that it is just one person routing through OpenRouter providers, and that its zero data retention claim is not credible, so it should not be used for sensitive work.

The author gave Union Alpha, GPT-6 Astra, Zhipu 5.3 Flash and DeepSeek V4.1 Flash the same HTML rocket launch task; all four completed it, and Union Alpha was slightly less precise at reading the prompt but still generated strong results.

Using the same prompt with no extra harness, the author says Union Alpha is clearly stronger than DeepSeek 4.1 Flash at 3D handling.

An AI daily digest reports that the unidentified stealth model Union Alpha scored 74% on DeepSWE, beat GPT-5.6 Sol on Terminal-Bench 2.1, and is free on OpenRouter with 256K context.

The author used Union Alpha in Cline to generate a Three.js sci-fi bunker scene in roughly one hour and 580M tokens, with a video demo.

A user tried Union Alpha for the first time, asking it to create a Douglas A-1 Skyraider, and shared the result.