# Whisper Large-v3 / Turbo TR FT: Common Voice + Bilkent + Mozilla TR + Custom Corpus

> Source: https://sukruyusufkaya.com/en/learn/fine-tuning-cookbook/ftc-whisper-tr-fine-tuning
> Updated: 2026-05-14T14:42:54.773Z
> Category: Fine-Tuning Cookbook (Model-by-Model)
> Module: Part VII — Speech & Audio Fine-Tuning
**TLDR:** Turkish Whisper FT — comfortable on RTX 4090 (large-v3 ~6 GB, turbo ~3 GB). Common Voice TR (180h), Bilkent TR corpus, Mozilla TR. WER (Word Error Rate) measurement, TR-specific tokenize fixes. Baseline WER 12% → FT WER 6% (~2× improvement).