AT0M vs Zarx
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
AT0M compared with Zarx
| Detail | A
AT0M | 
Zarx |
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| What it does | A private System One Decision AI that runs locally
| EU-resident inference API for open-weight language models
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| Stage | MVP
| MVP
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| Founded | Not given
| Not given
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| Based in | Not given
| ES
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| Pricing model | Not given
| Contact for pricing
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| Pricing | Not given
| Not given
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| Key features | - Non-autoregressive with no free text generation
- Multi-question call support in a single forward pass
- Bounded output within supplied candidate set
- Calibrated probabilities without temperature fitting
- Local inference as a Rust binary executable
- Deterministic inference with reproducible results
- Support for choice, score, and yes-no decision types
- CPU, Apple Metal, and CUDA hardware support
- Trainable on your own decisions locally
| - OpenAI-compatible Responses and Chat Completions endpoints
- Streaming with Server-Sent Events
- Function calling and tool use
- Structured JSON output with schema validation
- Audio transcription with file and live WebSocket modes
- Text-to-speech with built-in and customizable voices
- Speech-to-speech translation
- Time series forecasting up to 1,000 periods
- Per-key usage tracking and limits
- Servers owned and operated by NPAW in EU
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| What makes it different | - Bounded output structurally prevents off-list answers, unlike generative models
- Calibration by construction without temperature fitting enables direct threshold-based automation
- Local executable keeps inference in your perimeter with no per-decision API dependency
- Cost structure based on electricity, not output tokens
- Deterministic inference with identical results across repeated requests
| - Data residency in EU with no US sub-processor in the data path
- OpenAI-compatible API so teams can keep existing integrations
- Three capability levels—Z Ultra, Z Pro, Z Fast—on the same API
- Operated by NPAW, which has run its own data infrastructure since 2008
- ISO 27001, ISO 27701, ISO 42001 and ENS High certified
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 22 ▼ −2 (down) since last check | 5 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 3 | 13 |
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| Referring domains (Majestic) | 1 | 1 |
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4 details filled in for both companies.
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