Harny 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.
Harny compared with ModelBrain RAG
| Detail | 
Harny | 
ModelBrain RAG |
|---|
| What it does | Agent harness infrastructure that gives AI agents memory for each user, connected accounts, action limits and an audit record.
| An HTTP document search API for your apps
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | CA
| US
|
|---|
| Pricing model | Freemium
| Open source
|
|---|
| Pricing | Free: first 500 monthly-active end users per month, free forever. Paid: $0.30 per monthly-active end user above 500, billed monthly.
| Not given
|
|---|
| Key features | - Timestamped memory ingestion with backdating capability
- Per-user data isolation and privacy scoping
- Ranked memory recall with dated evidence
- Connected accounts integration per user
- Long-running agent jobs with folder-level operations
- Configurable token ceiling per API call
- Enforced action limits on agent operations
- Complete action audit trail with hash chaining
- MCP server integration for Claude and other clients
| - 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 | - Highest published BEAM benchmark score at 128K tokens: 85.1, compared to competing memory systems
- 98% fewer tokens required than raw tool output, making responses 4× cheaper
- Works with 20+ agent frameworks including LangChain, LangGraph and LlamaIndex
- First 500 monthly-active end users free forever
- Per-person billing model scales with user growth, not API calls
| - 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) | 1 ▲ +1 (up) since last check | 1 ● no change since last check |
|---|
| Trust Flow (Majestic) | 0 | 3 |
|---|
| Citation Flow (Majestic) | 0 | 27 |
|---|
| Referring domains (Majestic) | 1 | 17 |
|---|
5 details filled in for both companies.
More alternatives to Harny More alternatives to ModelBrain RAG