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The Weighted Average

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ElevenLabs v4 brings expressive speech to 90 languages

ElevenLabs launched Eleven v4 and v4 Turbo, with both models supporting more than 90 languages and Turbo reporting a median time to first speech of about 150 milliseconds. The official release also adds expressive audio tags, cross-language voice identity, and instant voice cloning from 10 seconds of audio, while noting that its latency test removed network time. Voice builders should treat 150ms as a vendor-measured model figure rather than end-to-end user latency; Meta’s transcription price comparison shows why a feature and measurement audit comes before migration.