Provider

Inworld TTS models

2 text-to-speech (TTS) models, ordered speed first: by speed tier and P95 time to first audio on Coval, then the models Coval does not measure, by name. No combined score.

Data checked on October 22, 2026 · updated after each benchmark capture

Inworld Realtime TTS-2

Fast enough Proprietary · Inworld

200.2 ms P95

152.5 ms median

Inworld Realtime TTS-2 is a proprietary text-to-speech (TTS) API from Inworld, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.

Spanish German French Portuguese +16

Inworld Realtime TTS-2 Flash

Headroom Proprietary · Inworld

98.2 ms P95

61 ms median

Inworld Realtime TTS-2 Flash is a proprietary text-to-speech (TTS) API from Inworld, measured by three independent benchmarks: Artificial Analysis, Coval and Speko.

Spanish German French Portuguese +13