Using "Stealth Models" via OpenRouter

chubes

chubes

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OpenRouter is an AI aggregator which gives you an API key to any public-facing AI model you can think of, with easy switching between them.

I just discovered something else about this company that I think is pretty cool and useful.

They partner with major AI companies to release "stealth models" which are testing versions of the latest models from an undisclosed creator.

These are available for free and allow you access to the latest tech without paying for it. There is data sharing involved, as this is likely how they fine-tune their models before release.

The latest one is called "Optimus Alpha", rumored to be from OpenAI.

https://openrouter.ai/openrouter/optimus-alpha

Coding with AI agents can be expensive so I'm always looking for loopholes. Plus the new models are usually better and more expensive than the old ones, so to have free access is pretty neat.
 
this is great. any interesting ones you've tried that do things that the "consumer versions" of these a.i. mmodels dont do?
 
@zelch i found out about this feature yesterday, and i have been using the Optimus Alpha stealth model inside of VSCode.

For me it gets the job done and doesn't make too many mistakes. I'm not aware of any novel features, just solid support for agentic coding.
 
lol I new I should have jumped on that.
 
chubes said:
Another free model out. This one isn't from OpenRouter but Roo Code directly, so it's coding specialized:

https://twitter.com/x/status/1957967811781042605

Free tokens for 72 hours. Get building gents

Also, i noticed that i missed Horizon Alpha / Horizon Beta on OpenRouter. That was def GPT 5 pre-release

https://openrouter.ai/openrouter/horizon-beta
Click to expand...
Annoyingly Horizon did way sexier designs than GPT-5 lol.

Just a heads up to everyone too Sonic is out on Cursor and Cline too.
 
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