model: Add support for SenseNova U1 model ( #28919 )
model : add SenseNova U1 understanding support
Add support for the dense SenseNova U1 understanding branch, including
the U1.5-8B-MoT model.
Add HF-to-GGUF conversion for NEOChatModel, excluding MoT generation
tensors and concatenating temporal and spatial Q/K normalization
weights.
Register the sensenova_u1 GGUF architecture and custom spatial RoPE
metadata.
Implement temporal/spatial Q/K normalization with 4-axis RoPE.
Keep U1-specific text position handling in the model implementation.
Add synthetic architecture coverage for sensenova_u1.
Only the dense understanding branch is supported; generation
branches are intentionally rejected during conversion.
conversion : treat one-expert SenseNova U1 configs as dense
mtmd : add SenseNova U1 vision support
Add conversion support for the SenseNova U1 vision encoder and implement
its CPU mtmd projector graph.
The graph applies patch embedding, GELU, adjacent-pair 2D RoPE, spatial
downsampling, and dense projection for dynamic-resolution image inputs.
mtmd : fix SenseNova U1 vision token layout
model : clean up SenseNova U1 RoPE metadata
Replace the hard-coded spatial RoPE key with shared GGUF and LLM_KV
definitions used by conversion, model loading, and architecture tests.
Clarify why SenseNova U1 retains its custom text-position input: U1 uses
[t, 0, 0, 0], while the generic M-RoPE input uses [t, t, t, 0].
mtmd : simplify SenseNova U1 projector integration
Map the SenseNova U1 dense projection to the standard mm.0 weight and
bias tensors and reuse the shared projector fields in the loader and graph.
Read vision parameters from the checkpoint configuration and remove the
U1-specific tensor names and model fields while preserving its strided
projection, bias, and row-major token layout.
mtmd : fix SenseNova U1 image positions and attention
fix spacing
mtmd : restore generic test input chunks
mtmd : restore SenseNova U1 integration after upstream merge
Update conversion/sensenova_u1.py
Co-authored-by: Sigbjørn Skjæret
[email protected]
Update src/models/sensenova-u1.cpp
Co-authored-by: Sigbjørn Skjæret
[email protected]
model : remove SenseNova U1 BF16 activation casts
Use standard backend precision handling for QKV, FFN, and output
projections instead of casting inputs based on the output tensor type.
Assisted-by: Codex
Update src/models/sensenova-u1.cpp
Co-authored-by: Sigbjørn Skjæret
[email protected]
Co-authored-by: Sigbjørn Skjæret
[email protected]
Website:
https://llama.app
Attestations:
https://github.com/ggml-org/llama.cpp/attestations/58406636
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