# Realtime TTS-2 launch evaluation: Voice Benchmark Profile

> Inworld’s launch post reports an independent speech-arena ranking, time-to-first-audio, and language coverage for Realtime TTS-2.

- Scope: independent speech-arena rank, P90 server-side time-to-first-byte, and language count
- Measurement lanes: Voice experience, Latency
- Primary metric: Arena rank and latency
- Available evidence: Rank and latency published in the official launch post and docs; no Elo value given
- Owner: Inworld
- Source snapshots refreshed: 2026-09-11

## Interpretation limit

Provider-reported; Inworld cites the Speech Arena rank without the underlying Elo.

## Primary sources

- [Owner page](https://inworld.ai/blog/realtime-tts-2)

Canonical page: https://benchlm.ai/voice-benchmarks/inworld-tts-2-launch-evaluation