Simo vs withHuman
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 withHuman
| Detail | 
Simo | 
withHuman |
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| What it does | Typed, always-valid fields with calibrated checks and calibrated decisions, in milliseconds
| The approval layer for AI agents
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| US
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| Pricing model | Paid
| Freemium
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| Pricing | $2 free credit per new account. Simo-1 Pro costs $0.03 per million input tokens, with output free.
| Open Source: free and self-hosted. Free: $0/month hosted plan with up to 5 members. Scale: $20 per user per month. Enterprise: Custom annual contract.
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| 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
| - Tool call interception for all agent frameworks
- Automatic approval rules to prevent fatigue
- AI judge for complex rule evaluation
- Works with LangGraph, CrewAI, Mastra, Claude Agent SDK and more
- Open Agent Approval Protocol for framework independence
- Self-hosted or cloud-hosted deployment options
- Custom permission policies and organization controls
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| What makes it different | - System 1.5 approach: one-pass reflex with calibrated probabilities and necessary deliberation
- Calibrated probabilities you can threshold
| - Framework-agnostic: works with any AI agent through the open Agent Approval Protocol
- No vendor lock-in: open source spec and SDKs let you swap providers without rewriting agents
- Comprehensive audit trail for accountability and compliance
- Meets reviewers where they work with multi-platform notifications
- Policy-based routing to eliminate approval bottlenecks
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 10 ▲ +10 (up) since last check | 30 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 4 | 6 |
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| Citation Flow (Majestic) | 20 | 28 |
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| Referring domains (Majestic) | 5 | 48 |
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5 details filled in for both companies.
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