What Is Ox Alpha? The Free Stealth Coding Model, Explained
Ox Alpha is a mystery stealth model on Open Code with a 1M token window, strong benchmarks, and standout front-end UI generation, free for a limited time.
What is Ox Alpha?
Ox Alpha is an anonymous “stealth” AI model available for free through Open Code, a coding agent platform. No company has claimed it, its name gives no hints about its origin, and Open Code lists it only as an unattributed route. What’s confirmed is its performance: it carries a 1 million token context window, supports multimodal input, and appears to be trained heavily on front-end and design work, based on hands-on testing and benchmark results circulating since its release.
TL;DR
- Ox Alpha is a stealth model on Open Code with no confirmed maker. Guesses range from a next-generation GLM release to something entirely new, but nothing is official.
- It ships with a 1 million token context window, multimodal support, and a zero data retention claim from Open Code, plus an advertised capacity of 100 trillion tokens per day during the free period.
- On one independent benchmark (“King Bench”), Ox Alpha scored 70 out of 80, landing in second place overall, with perfect 10s on a Three.js contact lens task and a Panda SVG generation test.
- Hands-on testing shows it’s particularly strong at front-end UI generation, producing clean typography, restrained color use, and consistent spacing across long pages rather than the generic “AI-looking” layout.
- Pairing it with Open Design, a free and open-source agentic design tool, adds structured design systems and live HTML/CSS previews on top of the model’s raw coding output.
- The free access window is temporary, expected to end around August 27, after which pricing and the model’s real identity may be revealed.
- Because the provider is unknown, it’s reasonable to use Ox Alpha for prototypes and personal projects while avoiding sensitive proprietary code until more is known.
Remy is new. The platform isn't.
Remy is the latest expression of years of platform work. Not a hastily wrapped LLM.
Why is Ox Alpha’s identity a mystery?
Open Code released Ox Alpha without attribution. There’s no model card, no parameter count, and no company name attached to it. This is a known pattern in AI releases: labs sometimes ship models under neutral or coded names to gather real-world feedback and benchmark data before a public launch, avoiding the hype (or backlash) that comes with an official announcement.
Speculation has centered on the model being a next-generation release from GLM, given its coding strength and pricing pattern, but this is unconfirmed. Open Code has also warned that the “Ox Alpha” label is an alias, meaning the underlying model could be swapped out at any time without notice. Anyone using it should treat the name as a moving target rather than a fixed product.
How well does Ox Alpha perform on benchmarks?
On an independent coding benchmark referred to as “King Bench,” Ox Alpha scored 70 out of 80, placing second overall among tested models. The breakdown is notable: it earned perfect scores on a Three.js contact lens rendering task and an SVG generation task involving a panda illustration, and scored 8 out of 10 on both an elevator simulation and a bow-and-arrow game build.
These are all visually demanding front-end tasks that require more than working code. They require layout sense, animation timing, and visual polish. Many current models can produce functional logic but fall short on aesthetics. Ox Alpha’s benchmark pattern, strong on visual tasks specifically, lines up with what hands-on testing shows: this is a model that seems to have been trained with real attention to design output, not just code correctness.
How do you set up Ox Alpha in Open Code?
Getting access requires installing Open Code first. On most systems this means running the install script from Open Code’s official site via curl, or installing it through npm if Node.js is already set up. Once installed, the process is:
- Open a terminal in any project folder and run
opencode. - If not already connected, run
/connect, select Open Code Zen, and follow the authentication link to sign in and generate an API key. - Paste the API key back into the terminal.
- Run
/modelsand search for Ox Alpha. - Select it as the active model.
Because it runs through the free stealth route, usage during the promotional period doesn’t draw down any paid Zen balance. No subscription or payment method is required to try it while the free window lasts.
Is Ox Alpha actually good at front-end coding?
Based on direct testing, yes, noticeably so. In one test, a simple landing page prompt (dark premium theme, hero section, features grid, pricing, footer, subtle scroll animations) produced a page with clean visual hierarchy, restrained accent color use, and animations that felt intentional rather than excessive. That’s a meaningful distinction, since a common failure mode for AI-generated sites is the “everything glows and slides in from five directions” look.
Remy doesn't write the code. It manages the agents who do.
Remy runs the project. The specialists do the work. You work with the PM, not the implementers.
Even without additional tooling, Ox Alpha inside a plain coding harness produced results well above the typical AI-generated baseline. But raw prompting still has limits. Vague instructions like “make it beautiful” tend to produce generic output regardless of which model is behind it. That’s where pairing it with a structured design tool changes the outcome.
What is Open Design and how does it improve results?
Open Design is a free, open-source, Apache 2.0 licensed design workspace that works with multiple coding agents, including Open Code, Claude Code, Codex, and Cursor. It’s local-first and model-agnostic, meaning it doesn’t lock you into any single AI provider. Instead of an open chat box, it gives the connected model a structured workflow: over 100 design skills, roughly 150 pre-built design systems (styled after products like Linear, Stripe, Vercel, Airbnb, Apple, and Notion), and a plugin library.
The key advantage is that a design system acts as a visual contract. Rather than telling a model to “make it modern” and hoping for the best, you’re handing it explicit rules for color palette, typography, spacing, component shapes, and motion, along with things to avoid. Combined with a model that’s already strong on visual tasks, this produces more consistent, less generic-looking output.
Everything Open Design generates is real HTML and CSS, not a flat mockup image. You can preview it live, edit it, export it, and hand it to a coding agent to integrate into an existing React, Next.js, or Vue project. In testing, a landing page prompt for a fictional AI music tool (dark palette, animated waveform, three-step workflow, pricing, call to action) produced a page with consistent spacing, a coherent type scale, and an accent color that carried through every section without needing manual cleanup.
Is Ox Alpha worth using right now?
For front-end prototyping, yes, at least while it remains free. The combination of a 1 million token context window, strong visual benchmark scores, and free access through Open Code makes it a low-risk option to test on personal or open-source projects. Paired with Open Design’s structured systems, it can go from a one-line prompt to a working HTML/CSS prototype that’s genuinely close to production quality.
The caveats are real, though. The provider is unknown, the “Ox Alpha” name could point to a different model tomorrow, and the free access period is set to end around August 27. Open Code’s zero data retention claim offers some reassurance, but with no confirmed company standing behind the model, sensitive or proprietary codebases are better kept elsewhere for now.
Frequently Asked Questions
Who made Ox Alpha?
Nobody knows for certain. It’s an anonymous stealth release on Open Code. Speculation includes a next-generation GLM model, but this has not been confirmed by any official source.
Is Ox Alpha free to use?
Yes, currently. It’s available at no cost through Open Code’s free stealth route, with free access expected to end around August 27. After that, pricing and the model’s identity may be revealed.
What is Ox Alpha’s context window?
It supports a 1 million token context window, along with multimodal input support, according to Open Code.
How does Ox Alpha compare to other coding models?
Plans first. Then code.
Remy writes the spec, manages the build, and ships the app.
On an independent benchmark, it scored 70 out of 80, ranking second overall, with particularly strong results on visually demanding front-end tasks like SVG generation and 3D rendering with Three.js.
What is Open Design used for?
Open Design is a free, open-source, model-agnostic design tool that pairs with coding agents like Open Code to generate real HTML and CSS using structured design systems, skills, and live previews, rather than relying on freeform prompting alone.