Zarx vs BitsRun
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Zarx compared with BitsRun
| Detail | 
Zarx | 
BitsRun |
|---|
| What it does | EU-resident inference API for open-weight language models
| Deploy any open model from Ollama or Hugging Face as a private, OpenAI-compatible API
|
|---|
| Stage | MVP
| Not given
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| Founded | Not given
| Not given
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| Based in | ES
| US
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| Pricing model | Contact for pricing
| Paid
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| Pricing | Not given
| Pay as you go: $0/month with prepaid credits from $10. Pro: $29/month with $29 monthly credits. Business: $299/month with $299 monthly credits. GPU pricing: NVIDIA L4 $0.95/hour ($0.000264/second, $1,180/month always-on); NVIDIA L40S $3.20/hour ($0.000889/second, $3,974/month always-on); 4x NVIDIA L
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| Key features | - 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
| - Deploy models with one command via CLI
- OpenAI and Ollama API compatibility
- Scales to zero with configurable idle timeout (60 seconds to 60 minutes)
- Private endpoints with no prompt logging
- Supports GGUF and safetensors model formats
- Free model storage (10GB to 1TB depending on plan)
- Always-on option for no cold starts
- Batch jobs pricing 30-50% cheaper
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| What makes it different | - 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
| - No Dockerfile or server management required
- Use your existing OpenAI or Ollama client with one URL change
- Pay only for actual compute seconds used, not monthly subscription
- Cold start time never billed and requests wait instead of failing
- Prompts and outputs never logged or used for training
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 13 | 0 |
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| Referring domains (Majestic) | 1 | 0 |
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5 details filled in for both companies.
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