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ElevenLabs reports stronger voice-agent results in longer support conversations
In a November 2 vendor study, ElevenLabs compared voice and chat on hundreds of agents that offered both channels. It says conversations longer than two minutes had a 31.7% higher relative success rate for voice and that successful long voice conversations averaged 4.6 minutes versus 7 minutes in chat. The company used conversation length as a proxy for complexity, selected agents with at least 50 sessions in each channel and used customer-defined success criteria. Those limits mean the findings are not a universal causal result.
Primary source · ElevenLabs · November 2, 2026
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