Simo vs REX

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

Simo compared with REX
Detail	Simo	REX
What it does	Typed, always-valid fields with calibrated checks and calibrated decisions, in milliseconds	A coding agent that runs your whole Windows PC by voice or text
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	ES
Pricing model	Paid	Free
Pricing	$2 free credit per new account. Simo-1 Pro costs $0.03 per million input tokens, with output free.	Free. Windows 10 or later, 64-bit.
Key features	Calibrated probabilities Text, screenshot and video analysis Millisecond latency Agent security with Simo Guard Visual QA assertions Document and form reading Video event detection	Verifies results before completion Voice and text input Runs on Windows 10 or later, 64-bit Compatible with any AI model you choose Multi-step task automation Checks live results in real applications
What makes it different	System 1.5 approach: one-pass reflex with calibrated probabilities and necessary deliberation Calibrated probabilities you can threshold	Operates the entire Windows desktop, not just the terminal Verifies task completion by checking real application results Completely free with no subscription required Voice control for hands-free operation Measured performance on public benchmarks
Community votes	0	0
DR (Domain Rating by Ahrefs)	10 +10 (up) since last check	2 no change since last check
Trust Flow (Majestic)	4	2
Citation Flow (Majestic)	20	24
Referring domains (Majestic)	5	15

5 details filled in for both companies.