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feat(parakeet-cpp): speaker diarization, including streaming and live transcription #12323

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feat(parakeet-cpp): speaker diarization, including streaming and live transcription #12323

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8656570
feat(parakeet-cpp): add speaker diarization with Nemotron-3-Diarization
mudler Sep 28, 2026
7615052
feat(importers): detect the parakeet.cpp diarization GGUF
mudler Sep 28, 2026
2f0049f
feat(transcription): carry speaker labels on words and streamed segments
mudler Sep 28, 2026
c9c7e5e
feat(parakeet-cpp): speaker labels on streaming and live transcription
mudler Sep 28, 2026
706aa80
chore(parakeet-cpp): pin parakeet.cpp to 6dea76a for the latency modes
mudler Sep 29, 2026
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1 change: 1 addition & 0 deletions backend/backend.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -647,6 +647,7 @@ message TranscriptWord {
int64 start = 1;
int64 end = 2;
string text = 3;
string speaker = 4; // backend speaker label when diarizing; empty otherwise
}

message TranscriptSegment {
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4 changes: 2 additions & 2 deletions backend/go/parakeet-cpp/Makefile
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@@ -1,6 +1,6 @@
# parakeet-cpp backend Makefile.
#
# Upstream pin lives below as PARAKEET_VERSION?=2bf88954dc628b32835734e2e9159550a75a1dc6
# Upstream pin lives below as PARAKEET_VERSION?=6dea76a81ee0bba83c6dad320dccc2fbeef111e2
# (.github/bump_deps.sh) can find and update it - matches the
# whisper.cpp / ds4 / vibevoice-cpp convention.
#
Expand All @@ -15,7 +15,7 @@
# That's what the L0 smoke test uses. The default target below does the
# proper clone-at-pin + cmake build so CI doesn't need a side-checkout.

PARAKEET_VERSION?=2bf88954dc628b32835734e2e9159550a75a1dc6
PARAKEET_VERSION?=6dea76a81ee0bba83c6dad320dccc2fbeef111e2
PARAKEET_REPO?=https://github.com/mudler/parakeet.cpp

GOCMD?=go
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