What is the context length of Horizon Beta?

Horizon Beta has a 256,000 token context window.

What inputs and outputs does Horizon Beta support?

Horizon Beta accepts images and text as input and returns text.

When was Horizon Beta released?

Horizon Beta was released on August 1, 2025.

All prompts and completions for this model are logged by the provider and may be used to improve the model.

Horizon Beta

openrouter/horizon-beta

This is a cloaked model provided to the community to gather feedback. This is an improved version of Horizon Alpha

Note: It’s free to use during this testing period, and prompts and completions are logged by the model creator for feedback and training.

Modalities

Context

256K

Released

Aug 1, 2025

Not currently available through EU in-region routing. In-region routing docs

Frequently asked questions

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Horizon Beta

Activity

Frequently asked questions

What is Horizon Beta?

What is the context length of Horizon Beta?

What inputs and outputs does Horizon Beta support?

When was Horizon Beta released?

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