Ox Alpha vs eryx

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Ox Alpha compared with eryx
Detail	Ox Alpha	eryx
What it does	Free stealth reasoning model for coding, agentic work, and multimodal workflows available through OpenRouter	WebAssembly sandbox for running untrusted Python safely
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
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	Not given
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	Full CPython 3.14 with standard library Async callbacks from sandboxed code No filesystem or network unless allowed Fast startup in 1–5 milliseconds Embed from Python, JavaScript or Rust MCP server support gRPC server deployment Hosted execution over HTTP and WebSocket
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	Full CPython 3.14 running in WebAssembly Async callbacks between sandbox and host Extremely fast sandbox startup Works as MCP server for AI agents
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	17	6
Referring domains (Majestic)	11	2

4 details filled in for both companies.

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