Reka Rho 1
Rho 1 is Reka’s published 19B omni-reasoning research model trained from scratch. A single network unifies language understanding, image and video generation, and robotic actions through shared attention and state. Separate understanding and generation weight streams combine next-token prediction with flow matching. The October 5 release presents architecture and demonstrations as a research preview; it does not establish downloadable weights or a generally accessible API. Its inclusion follows the catalog’s precedent for substantive named published research models.
2026-10-05
19B
Shared-attention multimodal Transformer with understanding and flow-matching generation streams
Proprietary
Specifications
- Parameters
- 19B
- Architecture
- Shared-attention multimodal Transformer with understanding and flow-matching generation streams
- License
- Proprietary
- Type
- multimodal
- Modalities
- textimagevideo
Benchmark Scores
Advanced Specifications
- Model Family
- Reka
- API Access
- Not Available
- Chat Interface
- Not Available
Capabilities & Limitations
- Capabilities
- omni reasoningtext generationvisual understanding and generationworld modeling
- Known Limitations
- Research preview with limited accessNo public weight download or general API is establishedDemonstrations do not establish production reliability
- Notable Use Cases
- multimodal researchinteractive simulationembodied reasoning research