Free stealth reasoning model for coding, agentic work, and multimodal workflows available through OpenRouter
Free browser-based GPU benchmark tool with WebGL 3D volume rendering
Stage
Not given
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Founded
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Based in
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Pricing model
Free
Free
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
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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
Real-time 3D volume shader effects with visual feedback
Measures average, minimum, maximum FPS and frame time
Works in any WebGL-enabled browser without installation
Cross-platform support for Windows, macOS, and Linux
Public leaderboards with fair GPU tier classification
Device-specific presets optimized for desktop and mobile
CSV export for benchmark results
Support for 19 languages
Interactive camera controls for visualization
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 download or installation required—benchmark directly in your browser
Uses ray-marched 3D fractal workload for realistic GPU stress testing
Reports renderer backend, API version, and fallback reasons for transparent results
Fair competition leaderboards with GPU tier matching to prevent hardware dominance
Automated device detection adjusts presets appropriately for desktop or mobile
Ox Alpha
Volume Shader BM