Eleven v4 Turbo hits ~150ms first-chunk latency across 90+ languages

sven_ai · x · 2026-10-26

AI voice synthesis is now nailing laughter and whispers: Eleven v4 Turbo reportedly delivers a median first-chunk latency of about 150ms and supports 90+ languages, going beyond plain reading with natural pauses and lowered voice.

The commentator's worry: hook this to cold-call systems and it becomes hard to tell whether the person on the line is human.

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