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Reka Rho 1

Reka AIProprietaryPending Human Review

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

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