S
Sapient HRM-Text
1B-parameter hierarchical reasoning foundation model for building structured AI agents
Open SourceFree
About
Open-source 1B parameter model with novel prefix-LM architecture optimized for hierarchical reasoning. Pre-aligned but deliberately non-instruction-tuned to serve as a flexible foundation for agent systems requiring structured reasoning capabilities. Significantly smaller than typical reasoning models while maintaining strong performance through architectural innovations focused on multi-step logic and planning.
Details
| Type | coding-agent |
| Deployment | self-hosted |
| Supported Models |
Tags
open-sourceautonomousframeworkpythonself-hosted
Quick Info
- Organization
- Sapient Inc
- Pricing
- open-source
- Free Tier
- Yes
- Updated
- Jun 5, 2026
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