TurboSpeak Correction Model

Fine-tuned Qwen3-1.7B (Q4_K_M quantization) for cleaning up speech transcription output.

What it does

  • Removes filler words (um, uh, like, you know, basically)
  • Fixes stutters (w-w-want โ†’ want)
  • Resolves mid-sentence self-corrections (speaker says X then corrects to Y โ†’ keeps only Y)
  • Preserves all content words โ€” never adds words the speaker didn't say

Performance

Metric Score
Correction accuracy 87.5% (35/40 P+G)
Filler/stutter handling 100%
Avg latency ~100ms on Apple Silicon
Model size 1.0 GB (Q4_K_M)

Training

  • Base model: Qwen/Qwen3-1.7B
  • Fine-tuning: LoRA (rank=8, lr=5e-5, 500 iterations)
  • Training data: 2,390 examples (1,710 base + 680 hard corrections)
  • Quantization: Q4_K_M via llama.cpp

Usage

Used by TurboSpeak macOS dictation app. Runs locally via llama.cpp / llama-cpp-2 Rust bindings.

System prompt (ChatML format)

Clean up the transcribed text. Remove filler words, fix stutters, and resolve mid-sentence corrections. Output only the cleaned text.

License

Apache 2.0 (same as base Qwen3 model)

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