Free stealth reasoning model for coding, agentic work, and multimodal workflows available through OpenRouter
Free, open-source desktop and web app for Meta's Muse Code CLI
Stage
Not given
Not given
Founded
Not given
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Based in
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IN
Pricing model
Free
Open source
Pricing
$0 per million input tokens, $0 per million output tokens during preview; TryOXAlpha hosted chat offers 5 free guest replies, 15 additional replies after account creation, and 100 AI replies for $4.99 one-time purchase
Free, MIT licensed, no paid tier, no trial, no seats, no account. Runs on your existing Muse Code subscription.
Key features
1,048,576-token context window
Multimodal inputs: text, image, and video
Tool calling and structured outputs
Configurable reasoning efforts: low, high, and max
OpenAI-compatible API endpoint
Supported through OpenRouter model ID stealth/ox-alpha
131,072 output tokens maximum
Projects and sessions grouped by working directory and git worktrees
Resume sessions including those started in the terminal TUI
Inline diffs in the thread at the turn that produced them
Every agent approval surfaced and never bypassed
Cost tracking at published API rates per thread
Full keyboard navigation with command palette
File viewer with source, Markdown, image, video and PDF preview
Remote daemon support for running the agent on another machine
VS Code extension available
Native Windows support with PowerShell
What makes it different
1M token context window for repository-scale coding tasks
Multimodal support combining code with screenshots and diagrams
Free preview pricing during stealth release
Tool calling and structured output for agentic workflows
No additional cost or billing on top of existing Muse Code subscription
Credentials stay with the muse CLI, never stored by Helicon
Native Windows support without requiring WSL
MIT licensed open-source with no company behind it
Ox Alpha
Helicon