# Realtime TTS-2 Flash launch notes: Voice Benchmark Profile

> Inworld’s model documentation reports time-to-first-byte and coverage for the Flash variant of Realtime TTS-2.

- Scope: Time-to-first-byte and language coverage from the official model docs
- Measurement lanes: Latency
- Primary metric: Latency (lower is better)
- Available evidence: Documented figures only
- Owner: Inworld
- Source snapshots refreshed: 2026-09-11

## Interpretation limit

Provider-documented latency; no arena or listening-test result is published for the Flash variant.

## Primary sources

- [Owner page](https://docs.inworld.ai/tts/tts-models)

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