Ox Alpha vs CurlyJSON

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 CurlyJSON
Detail	Ox Alpha	CurlyJSON
What it does	Free stealth reasoning model for coding, agentic work, and multimodal workflows available through OpenRouter	JSON Formatter & Validator — Free, Private & Offline
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Freemium
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 for all tools. Pro: $29.99 per year or $4 per month, plus tax.
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	Validate JSON with precise line and column errors Repair invalid JSON fixing trailing commas, quotes, and comments Preserve large integers without rounding Detect and mask API keys, tokens and passwords
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	Keeps large numbers exactly as written instead of silently rounding them like most online formatters All free tools run entirely in your browser, working offline without uploading data Automatically detects and warns about secrets like API keys and passwords
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	7
Citation Flow (Majestic)	17	13
Referring domains (Majestic)	11	2

5 details filled in for both companies.

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