Ox Alpha
Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context. Ox Alpha is a stealth model. It is developed and operated by a third-party provider who has chosen to remain anonymous during this preview. OpenRouter routes requests to it and is not its developer, owner, or provider. Prompts and completions are retained by the provider an
Specifications
| Lab | Stealth |
|---|---|
| Context window | 1M tokens |
| Input price | $0.00/1M |
| Output price | $0.00/1M |
| Release | Aug 2026 |
Strengths
- Supports text and image input with text output
- Supports video input for multimodal analysis
- Million-token context window for very long tasks
- Free OpenRouter listing for low-friction experimentation
Weaknesses
- Free-tier endpoints may have lower throughput than paid APIs
- Newer listing with limited independent benchmark coverage
- Multimodal performance may vary by provider endpoint
Best for
- Agentic workflows and tool-using applications
- Multimodal document and screenshot analysis
- Long-context document and codebase processing
- Prototyping on a free OpenRouter endpoint
In Depth: Ox Alpha
Summary
Ox Alpha is an AI model from Stealth.
Released in Aug 2026. It takes text, image, and video input and produces text output, with a context window of 1M tokens. Input pricing is $0.00 per 1M tokens and output is $0.00 per 1M tokens on OpenRouter.