What model is Horizon Alpha/Beta on Openrouter?
25
500Ṁ6808
resolved Aug 7
100%98.3%
A version of GPT-5
0.4%
A version of OpenAI's open source model
1.3%
Other

Resolution criteria

This market will resolve to the option that accurately identifies the underlying model of Horizon Alpha on OpenRouter. The resolution will be based on official announcements from OpenRouter or the model's developers, as well as credible sources detailing the model's origin.

If at the end of the year there is no consensus of information from credible sources, this market will resolve N/A.

In the event that OpenAI releases multiple open source models before market close, if Horizon Alpha is confirmed to be one of them this market will resolve "A version of OpenAI's open source model".

In the event that Horizon Alpha is confirmed to be a version of a model with GPT-5 in the name, such as GPT-5-mini, then this market will resolve "A version of GPT-5".

Background

OpenRouter has introduced several models with limited public information regarding their origins. For instance, Quasar Alpha and Optimus Alpha were cloaked models which were later revealed to be checkpoints of GPT-4.1. Horizon Alpha is similarly freely and anonymously available on OpenRouter.

Get
Ṁ1,000
to start trading!

🏅 Top traders

#NameTotal profit
1Ṁ267
2Ṁ241
3Ṁ121
4Ṁ37
5Ṁ33
Sort by:

"summit"

Check out the new repository https://github.com/openai/harmony

bought Ṁ100 YES

Horizon Beta is listed on OpenRouter as "an improved version of Horizon Alpha"

© Manifold Markets, Inc.TermsPrivacy