# How Cartesia uses Together AI

As published on [together.ai](https://www.together.ai/customers/cartesia). Captured by usedby on 2026-10-03.

- Company: [Cartesia](https://www.usedby.ai/companies/cartesia.md)
- Tool: [Together AI](https://www.usedby.ai/tools/together-ai.md)
- Industry: [Artificial Intelligence](https://www.usedby.ai/companies/industry/artificial-intelligence.md)

## The use case: how Cartesia deploys Together AI

Cartesia runs production real-time voice serving and model training on Together AI's GPU clusters. It operates a custom inference engine for its State Space Model architecture with cluster-level access, and uses PCI-compliant environments for regulated enterprise customers.

Summary written by usedby from the source page, in English. The figures are those of Together AI and Cartesia, not ours.

> Cartesia reports 90ms model latency for voice generation across the Sonic model family, achieving the fast, consistent response times required for streaming conversational AI.

> Because our voice models use state space architectures, we need to run a purpose-built inference engine. Together AI gives us the compute and cluster-level access we need—down to the filesystem and SSH permissions—so we can optimize our serving stack exactly how we want. They manage the heavy lifting of the hardware orchestration and ingress, and we get the low-level control required to hit our streaming latency targets.
>
> Kunal Shah, Head of Platform

Source: [together.ai](https://www.together.ai/customers/cartesia), captured 2026-10-03.

## Other AI tools used by Cartesia

- [Modal](https://www.usedby.ai/tools/modal.md) — Observed

## Together AI users in Artificial Intelligence

- [Arcee AI](https://www.usedby.ai/companies/arcee-ai.md) — Confirmed
- [Decagon](https://www.usedby.ai/companies/decagon.md) — Confirmed
- [Deep Cogito](https://www.usedby.ai/companies/deep-cogito.md) — Confirmed
- [Dippy AI](https://www.usedby.ai/companies/dippy-ai.md) — Confirmed
- [Hedra](https://www.usedby.ai/companies/hedra.md) — Confirmed
- [LegionEdge](https://www.usedby.ai/companies/legionedge.md) — Confirmed

## What usedby checked

We compared the story with its live page on 2026-10-03.

- Checked: the passage quoted above is copied word for word from the page, near the name of Cartesia.
- Checked: Cartesia uses Together AI. Confirmed line. Latest check across sources: 2026-10-19.
- Not checked: the result itself. We quote it; we did not measure it.

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Source: https://www.usedby.ai/case-studies/cartesia-together-ai · How we check: https://www.usedby.ai/methodology