Perseus Computing vs WBX Sandbox
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Perseus Computing compared with WBX Sandbox
| Detail | 
Perseus Computing | WS
WBX Sandbox |
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| What it does | High-assurance infrastructure for AI agents
| Secure execution for AI agents in isolated Firecracker microVMs or WebAssembly
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| Stage | Not given
| Not given
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| Founded | Not given
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| Based in | US
| CZ
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| Pricing model | Open source
| Not given
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| Pricing | Not given
| 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
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| Key features | - Harpe: chooses what an AI agent reads under a token budget with consistent results
- Kibisis: keeps agent memory on your hardware with AES-256-GCM encryption
- Argus: append-only record that detects edits with cryptographic verification
- No network code by default for local and disconnected use
- MIT License with published code, benchmarks and raw results
| - 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
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| What makes it different | - Measured empirical validation across 6,111 questions outperforming full-context models
- Zero plaintext on disk with encrypted vaults matching plaintext accuracy
- 78.3% fewer tokens sent to the model with a 1,200-token budget per turn
- Preserves conversational chronology and relational qualifiers under token budgets
| - Two runtimes with honest isolation labeling
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 42 ▲ +1 (up) since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 24 | 0 |
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| Referring domains (Majestic) | 62 | 0 |
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4 details filled in for both companies.
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