Deepslate is a Berlin-based voice AI lab founded in 2024 that trains its own native speech-to-speech model, Opal, processing audio directly instead of chaining separate speech-to-text, language-model and text-to-speech stages. The model covers 27 European languages, runs entirely on EU infrastructure with self-hosting options up to air-gapped deployments, and recorded a 440 ms time-to-first-audio in the September 2026 Artificial Analysis benchmark, the fastest measured at the time. Deepslate sells through a self-service platform and API plus enterprise deployments, and is used in production by insurers, contact centres and platforms.
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Oct 1, 2026
Latest raise
Funding activity · 1 round
Oct 1, 2026
EUR 7.7M
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Led by 42Cap
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