Rnj 1
Rnj 1 is Essential AI’s 8B dense model family trained from scratch for coding, mathematics, and science. It follows a Gemma-like architecture with global self-attention and YaRN context extension. The family groups base and instruction checkpoints, with tool use and coding-agent behavior in the post-trained model. Apache-licensed weights support local deployment and customization. The model card warns of identity confusion and inaccurate factual recall; long generations can be less reliable than long-context comprehension.
2025-12-05
8B
Decoder-only Transformer
Apache-2.0
Specifications
- Parameters
- 8B
- Architecture
- Decoder-only Transformer
- License
- Apache-2.0
- Context Window
- 32,768 tokens
- Type
- text
- Modalities
- text
Benchmark Scores
Advanced Specifications
- Model Family
- Rnj
- API Access
- Not Available
- Chat Interface
- Not Available
- Variants
- rnj-1rnj-1-instruct
Capabilities & Limitations
- Capabilities
- codingSTEM reasoningtool uselong context
- Known Limitations
- Not optimized for factual recallMay confuse its identity or invent a training cutoffLong generations can contain junk tokens
- Notable Use Cases
- private coding assistantsSTEM researchrepository analysis