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Artificial Analysis evaluated Cartesia's fully managed voice agent solution, Cartesia Managed Agents, on the Speech Agent Arena. The solution achieved an Elo of 1115, 98 points higher than the previous Cartesia Line (1017), with task success rate rising from 77.5% to 91.7%. The platform runs in a cascade around a developer-selected LLM using Cartesia's in-house Ink speech-to-text and Sonic text-to-speech models; this evaluation used GPT-5.5 and the two voices Skylar and Daniel. On agent tasks requiring tool calls, the Elo was 1112. There are currently no further developments.
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Artificial Analysis evaluates Cartesia Managed Agents voice Agent
Source:Artificial Analysis
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Oct 28
Artificial Analysis
Cartesia Managed Agents voice agent reaches an Elo of 1115
Cartesia Managed Agents achieved an Elo of 1115 on the Artificial Analysis Speech Agent Arena, 98 points higher than the previous Cartesia Line (1017), with task success rate rising from 77.5% to 91.7%. The platform is Cartesia's fully managed voice agent solution, running in a cascade around a developer-selected LLM with its self-developed Ink speech-to-text and Sonic text-to-speech models; this evaluation used GPT-5.5 with the Skylar and Daniel voices. On agent tasks requiring tool calls, the Elo was 1112.