The most popular free GUI for Windows is (by Const-me) or WhisperCPP Studio . For 2025, look for builds that include:
| Hardware | Model | Speed (real-time factor) | |----------|-------|--------------------------| | CPU only (Intel i5 12th gen) | Base (multilingual) | ~0.35x – 0.5x (slower than real-time) | | CPU + OpenCL (AMD/NVIDIA) | Small | ~0.8x – 1.2x | | CPU + Vulkan (Intel Arc/AMD) | Medium | ~1.5x – 2x | | CPU + AVX512 | Tiny | ~3x – 5x (very fast) | whispercpp gui windows 2025 free