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What is Ox Alpha?

Ox Alpha is a stealth reasoning model created for demanding workloads involving programming, autonomous agents, multimodal information, and complex analysis. It became publicly available in August 2026 without the developer revealing which company or research lab produced it. The model is distributed under the stealth/ox-alpha identifier and has quickly attracted interest from developers experimenting with AI coding agents. Ox Alpha can process up to 1,048,576 tokens of context, allowing large amounts of source code, documentation, logs, specifications, or other material to remain available during a task. It can also produce outputs of up to 131,072 tokens, providing substantial room for detailed code, analysis, documentation, or structured results. Input support includes text, images, and video, while responses are generated as text. This multimodal capability allows the model to reason about screenshots, interface designs, diagrams, visual documentation, and video alongside written instructions. Ox Alpha supports native tool calling, which enables AI agents to interact with external functions and systems while completing multi-step workflows. Structured output capabilities can also produce schema-based JSON that applications can process programmatically. The model is particularly geared toward long-horizon software engineering work, including debugging, code review, refactoring, system design, and reasoning across large repositories. Although speculation continues about which AI company developed Ox Alpha, no creator has been publicly confirmed, making its performance and unusual technical specifications the primary basis for evaluating the model today.

What is Grok 4.3?

Grok 4.3 is a next-generation AI model from xAI that expands on the capabilities of the Grok 4 series with improved reasoning, real-time intelligence, and automation features. It is designed to handle complex, multi-step tasks such as coding, research, and decision-making with greater accuracy and consistency. The model integrates real-time data from the web and X, allowing it to provide up-to-date answers and insights. Grok 4.3 supports multimodal functionality, enabling it to process and generate content across text, images, and other formats. It operates within the SuperGrok Heavy tier, which offers enhanced compute power and access to advanced features. The model includes long-context capabilities, allowing it to analyze large datasets and extended conversations effectively. It also supports tool use and integrations, enabling it to interact with external systems and automate workflows. Grok 4.3 benefits from the multi-agent “heavy” configuration, which improves performance on complex reasoning tasks. It is optimized for speed, responsiveness, and real-time interaction. The model can be used for a wide range of applications, including software development, research, and business analysis. It builds on Grok’s foundation as an AI assistant integrated with modern platforms and environments. The system continues to evolve with ongoing updates and feature enhancements. Overall, Grok 4.3 represents a powerful AI solution for users seeking real-time intelligence and advanced automation capabilities.

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Integrations Supported

Hermes Agent
OpenClaw
OpenRouter
C++
CSS
Cheaper Inference
Cursor
DeepSeek Harness
EaseMate AI
F#
FastRouter
Forge Code
JetBrains Junie
Julia
Kilo Code
OpenCode Go
Pi Agent
R
Scala
iMini

Integrations Supported

Hermes Agent
OpenClaw
OpenRouter
C++
CSS
Cheaper Inference
Cursor
DeepSeek Harness
EaseMate AI
F#
FastRouter
Forge Code
JetBrains Junie
Julia
Kilo Code
OpenCode Go
Pi Agent
R
Scala
iMini

API Availability

Has API

API Availability

Has API

Pricing Information

$0 per 1M tokens
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Ox Alpha

Company Website

openrouter.ai/compare/stealth/ox-alpha

Company Facts

Organization Name

SpaceXAI

Date Founded

2023

Company Location

United States

Company Website

grok.com

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