rubaistt v2 medium EU AI Act Compliance Profile

rubaiSTT-2v Medium - Uzbek Speech-to-Text Model

Classic Whisper medium model fine-tuned for Uzbek language. The dataset included of diverse audio: publicly available podcasts, Tashkent dialect podcasts, news, google fleurs, USC and Common Voice 17. Data quality was mixed with 50% human transcribed and 50% pseudo-transcribed using Gemini 2.5 Pro.

Difference between v1 is that v2 is fully open-sourced. Due to some conflicts with data partners, v1 was removed, and the 500-hour dataset was excluded. Instead, new and different datasets were included—all of which will be open-sourced. Training scripts will also be open-sourced. The entire process will be fully repeatable.

Special attention was given to Tashkent dialect audio materials, resulting in strong performance on this dialect. Future versions will include other regional dialects to improve overall coverage.

Whitepaper

For more details on the methodology and research behind this model, visit: https://uz-speech.web.app/rubaistt02m

Training and filtering code: https://github.com/Islomov49/rubaistt_v2-open-sourced

Support my works and open-source movement: https://tirikchilik.uz/islomovs

Model Details

• Base Model: Whisper Medium
• Parameters: 769M
• Performance:
  • WER: ~17%
  • CER: ~5.5%

Training Data

This model was fine-tuned on approximately 475 hours of diverse Uzbek audio data including:

• Common Voice 17 dataset (filtered)
• USC (filtered)
• Google fleurs (filtered)
• Podcasts Tashkent Dialect Youtube Uzbek Speech Dataset: Link HF
• News Youtube Uzbek Speech Dataset: Link HF
• IT Youtube Uzbek Speech Dataset: Link HF

The dataset consisted of 50% human-transcribed and 50% pseudo-transcribed material (using Gemini 2.5 Pro). Special at

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