Ox Alpha AI

Reasoning model with 1M token context and multimodal inputs for coding tasks

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$4.99Starting price

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About Ox Alpha AI

Ox Alpha AI is a reasoning model designed for long-horizon software engineering, agentic workflows, and multimodal inputs. It operates under the OpenRouter provider label “Stealth” and is accessible via the OpenRouter API and compatible clients. The model supports a one-million-token context window, up to 131,072 output tokens, and accepts text, image, and video inputs. It includes mandatory reasoning, tool calling, and structured output capabilities, making it suitable for tasks such as code review, debugging, refactoring, and repository-scale analysis. Developers can interact with Ox Alpha through its chat-completions endpoint, with requests routed via OpenRouter to an anonymous third-party provider. The model is currently available as a free preview, though pricing and availability may change without notice. Specifications and performance details are based on verified OpenRouter model catalog data as of August 2026.

Key features

1,048,576 token context window
131,072 token maximum output
Multimodal input support (text, image, video)
Mandatory reasoning with adjustable effort
Tool calling and structured output
OpenRouter API and compatible client access
Free preview pricing during stealth phase
Chat-completions endpoint for integration

Use cases

Reviewing and refactoring large code repositories
Debugging complex software projects with extensive context
Generating detailed unit tests and architectural plans

Pros

1M token context window for handling large codebases
Supports multimodal inputs including text, images, and video
Mandatory reasoning with adjustable effort levels (low, high, max)
Tool calling and structured output capabilities
Free preview pricing during stealth phase

Cons

Anonymous provider identity limits transparency
Specifications and pricing may change without notice
No confirmed permanent free access beyond preview
Requires OpenRouter API for access

Frequently asked questions about Ox Alpha AI

What is Ox Alpha AI?

Ox Alpha AI is a reasoning model designed for long-horizon software engineering, agentic workflows, and multimodal inputs. It operates under the OpenRouter provider label 'Stealth' and is accessible via the OpenRouter API and compatible clients.

Who should use Ox Alpha AI?

Developers and teams working on complex software engineering tasks, such as code review, debugging, refactoring, and repository-scale analysis, may find Ox Alpha AI suitable due to its large context window and tool-calling capabilities.

How do I access Ox Alpha AI?

Ox Alpha AI can be accessed through the OpenRouter API using the model ID 'stealth/ox-alpha'. Users need an OpenRouter account and API key to send requests, with no direct affiliation required from the model provider.

What input and output formats does Ox Alpha AI support?

Ox Alpha AI supports text, image, and video inputs, with text output. It features a one-million-token context window, up to 131,072 output tokens, mandatory reasoning, tool calling, and structured output capabilities.

Is Ox Alpha AI free to use?

Ox Alpha AI is currently available as a free preview, with input and output tokens priced at $0 during the preview period. Pricing and availability may change without notice.

How does Ox Alpha AI handle privacy and data security?

Requests to Ox Alpha AI are routed through OpenRouter to an anonymous third-party provider, whose terms govern submitted content. The provider's identity and data handling practices are not disclosed during the preview.