# Cartesia — Is this TTS model good?

- Company: Cartesia (cartesia.ai)
- Announced: 2026-07-28
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://www.cartesia.ai/blog/is-this-tts-model-good
- Record: https://forck.live/items/8008-is-this-tts-model-good
- Subject: Sonic / Ink

The evaluation of text-to-speech models involves multiple dimensions including correctness, audio quality, naturalness, and robustness, and metrics like word error rate saturate as models improve.

## Evidence

Verbatim from https://www.cartesia.ai/blog/is-this-tts-model-good:

> This multidimensionality is why TTS evaluation is tricky and as models improve, the evaluation shifts away from obvious defects like mispronounced words, garbled audio, or background noise towards more nuanced aspects.

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