Cartesia Managed Agents hits Elo 1115 on Speech Agent Arena
A 14-point jump in task success rate suggests the managed orchestration layer, not just the underlying voices, is what moves voice-agent quality. Builders choosing between managed platforms and assembling their own STT-LLM-TTS stacks now have a quantified head-to-head comparison, including performance on tool-calling tasks specifically. The bring-your-own-LLM design means teams can test the same cascade with different models.
