mtmd : add Nemotron 3 Nano Omni support (parakeet)#22520
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This commit adds support for the subsampling and encoder part of Nemotron Nemo 3 omni model. The Parakeet subsampling/encoder were taken from parakeet.cpp which is currently a pull request against whisper.cpp. I've tried to copy the code a close as possible to hopefully enable easy patching between the these two project later. Refs: ggml-org/whisper.cpp#3735
ngxson
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Apr 29, 2026
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looks good, I'm leaving some early-review comments
This commit removes the generation of the relative positional tensor in the model conversion script and instead computes it in the encoder graph. This is only done for the window of positions required for the current audio sample.
ngxson
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Apr 30, 2026
ngxson
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Apr 30, 2026
This commit adds a function to get access to the clip_model. It also removes the two functions clip_get_mel_filter_tensor, and clip_get_window_tensor(const struct clip_ctx * ctx) which can now use clip_get_model to access the model tensors that it needs.
ngxson
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Apr 30, 2026
…tmd-audio [no ci]
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Overview
This is a work in progress. It will not be merged until the whisper.cpp/parakeet.cpp PR has been merged. Working on both allows for discovering improvements/painpoints which can feedback both ways
This commit adds support for the subsampling and encoder part of Nemotron Nemo 3 omni model.
Additional information
The Parakeet subsampling/encoder were taken from parakeet.cpp which is currently a pull request against whisper.cpp. I've tried to copy the code as close as possible to hopefully enable easy patching between these two project later.
Refs: ggml-org/whisper.cpp#3735
For testing a converted model can be found here and can be run using the following command:
llama-mtmd-cli -hf danbev/Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16-mtmd-GGUF --no-warmup --audio jfk.wav -p "Transcribe this audio clip, only the trancription and nothing else."