WBX Sandbox vs ModelBrain RAG
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
WBX Sandbox compared with ModelBrain RAG
| Detail | WS
WBX Sandbox | 
ModelBrain RAG |
|---|
| What it does | Secure execution for AI agents in isolated Firecracker microVMs or WebAssembly
| An HTTP document search API for your apps
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | CZ
| US
|
|---|
| Pricing model | Not given
| Open source
|
|---|
| Pricing | Free plan: no card required, 5 concurrent sandboxes, up to 1 hour per sandbox, one-time welcome credit. Pro: $49.00/month (excl. VAT) with $25.00 usage credit, 25 concurrent sandboxes, up to 24 hours per sandbox, 100 vCPU/100 GB RAM total. Team: $119.00/month (excl. VAT) with $50.00 usage credit, 10
| Not given
|
|---|
| Key features | - Isolated Firecracker microVMs with own kernel and filesystem
- Background jobs that survive disconnects
- Batch execution with up to 1,000 jobs and dependency passing
- WebAssembly jobs starting in milliseconds without VM boot
- Budget Guard with cost reserves and limits
- Execution receipts with runtime, isolation, resources and file hashes
- Native MCP server integration for ChatGPT and Claude
- Compact log digests instead of full 5,000-line logs
- Server-side job waiting with signed webhooks
- Verified package cache for PyPI, npm, Go and Rust
| - Search passages that match a query with scores and file references
- Manage collections and add or remove documents over HTTP or web interface
- Share vaults and partitions for search-only access
- API keys with read, write or admin access levels
- Web interface for search and administration
- User account management with three access levels
- Full-text and vector search indexes
- Runs locally on 127.0.0.1 with no outgoing connections
- SHA-256 hashed API keys and scrypt hashed passwords
- Limit lists restrict collections and vaults per user or API key
|
|---|
| What makes it different | - Two runtimes with honest isolation labeling
| - Runs entirely locally on your computer with no outgoing connections
- Free and open source with MIT license
- Does not write answers or contain a language model
- Shared vaults and partitions are search-only and cannot be modified
- Integrates with any language model of your choice
|
|---|
| 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) | 2 ● no change since last check | 1 ● no change since last check |
|---|
| Trust Flow (Majestic) | 0 | 3 |
|---|
| Citation Flow (Majestic) | 0 | 27 |
|---|
| Referring domains (Majestic) | 0 | 17 |
|---|
4 details filled in for both companies.
More alternatives to WBX Sandbox More alternatives to ModelBrain RAG