# Cartesia — Introducing Managed Agents

- Company: Cartesia (cartesia.ai)
- Announced: 2026-10-29
- Category: product-launch
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://www.cartesia.ai/blog/managed-agents
- Record: https://forck.live/items/29429-introducing-managed-agents
- Subject: Sonic / Ink

Cartesia is launching Managed Agents, an end-to-end voice agent platform for enterprise conversations, which it says ranks first on independent voice agent benchmarks at launch. The company says it co-designed its voice models and the harness as one system so listening, turn-taking, reasoning, tool-calling and speech are tuned together, rather than relying on cascaded pipelines or hard-to-control speech-to-speech models. On Artificial Analysis's Speech Agent Arena, where blind human raters compare agents on tasks such as booking appointments and ordering takeout, Managed Agents ranks first of 30 agents with a preference Elo of 1115, with benchmarks run using GPT-5.5 as the reasoning model. On EVA-Bench, ServiceNow's open benchmark for enterprise voice agents in CSM, ITSM and HR, Cartesia reports the highest scores for both accuracy (87%) and experience (91%) across more than 200 scenarios. In internal evaluations, callers reported no turn-taking issues in 85% of conversations with Managed Agents, compared with 67% for other agents. The platform bundles telephony, knowledge bases and tool integrations, supports agents in 44 languages with mid-conversation switching between English, Spanish, Hindi, French and Japanese, and offers outbound batches for scheduling thousands of personalized calls. Cartesia says Managed Agents has already powered tens of millions of conversations in finance, retail, hospitality and healthcare.

## Evidence

Verbatim from https://www.cartesia.ai/blog/managed-agents:

> Today, we’re launching Cartesia Managed Agents, our end-to-end voice agent platform for enterprise conversations. It pushes the frontier of speech-to-speech naturalness and accuracy, and ranks #1 on independent voice agent benchmarks at launch.
> 
> We designed the harness and our voice models together, so listening, turn-taking, reasoning, tool-calling, and speech are tuned as one end-to-end system. Everything enterprise teams need to run agents in production comes on one platform: telephony, knowledge bases, tool integrations, and more. And we’ve tested it at scale — Managed Agents has already powered tens of millions of conversations in finance, retail, hospitality, and healthcare.
> 
> Setting a new Pareto frontier
> 
> Cascaded pipelines are the dominant paradigm for enterprise tasks, but without careful co-design they can lose out on naturalness and conversational dynamics like turn-taking and interruptions. Today’s speech-to-speech models sound natural, but they’re hard to control and less reliable for enterprise-grade tasks.

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