Ox Alpha
stealth/ox-alphaOx Alpha is a stealth-mode reasoning model from an anonymous third-party provider being previewed on OpenRouter, supporting text, image, and video input with a 1M-token context window plus function calling and structured JSON output. It targets coding, sustained agentic work, and long-horizon software engineering, and is offered free during this preview with the provider stating prompts and completions are not used for training.
Cost rate
Free
Context
1M
Released
Aug 20, 2026
Input
TextImageVideo
Output
Text
Support
ReasoningTool callingStructured outputs