whisper.cpp

Judgement

What it is

Building block

What it does

A dependency-free C/C++ port of Whisper that runs speech recognition on CPUs, Apple Silicon with Metal and Core ML, CUDA and other backends, including on phones.

Adopt it when

You need transcription embedded in a native, mobile or edge application without Python.

Watch out

Integrating it means C/C++ builds or bindings, and features such as speaker diarization are not built in.

Ready for

Production-ready

Runs as

Library and command line

Built with

C++, C, ggml and CUDA

How established

Established: started 4 years ago, latest release v1.9.5.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: whisper.cpp → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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