Whistle

Product · 1 update

Where it stands

As of Oct 11, Whistle is a single 16.9 MB .cact file that runs on the same CPU Needle engine with no GPU: English, German, French, Spanish, Italian, Dutch and Polish, word timestamps, keyword biasing, and speech embeddings, with ~11 ms to first token on Apple Silicon.

Timeline · newest first
  1. Official

    Cactus Compute releases Whistle, a 16.9 MB on-device speech-to-text model for seven languages

    Cactus Compute published this on Oct 11, 2026 (source: cactuscompute.com).

    Whistle is a single 16.9 MB .cact file that runs on the same CPU Needle engine with no GPU: English, German, French, Spanish, Italian, Dutch and Polish, word timestamps, keyword biasing, and speech embeddings, with ~11 ms to first token on Apple Silicon. Weights are on Hugging Face; the engine ships for seventeen platforms including mobile and WebAssembly.

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