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cantari
Engine

Kokoro

Cheapest. Clean, plain read. Ignores cues.

CheapestFastOpen-source
Generated by Kokoro
4 real voices · previews below
The numbers

Scores, speed, and the real rate.

The same trust rows as the open benchmark: a third-party quality score, our own measured latency, and the raw engine cost in the open.

Quality Elo*
1060
Measured latency
973ms measured 2026-06-10
Languages
8 languages
Follows [cues]
Plain read, ignores cues
Engine cost
$0.62/M in · $0 out rate checked 2026-06-11

The provider’s published rate when we last checked. Rates move, and when they do we update this row. It’s here so you can weigh our flat pricing against the raw cost underneath, instead of taking our word for it.

Rights
Apache-2.0 model; commercial OK

* Quality Elo from the Artificial Analysis Speech Arena, retrieved June 10, 2026. It is a user-vote arena rating; the top model of all rated is Fun-Realtime-TTS at 1228.06.

Latency is our own wall-clock time to full audio, measured 2026-06-10 on the same path that serves the studio. A measurement, not a server SLA.

Voices

Every voice Kokoro ships.

Press play to hear each voice: real output from this engine, recorded unedited. What you hear is what it produced.

Heart

Warm American narrator

Michael

Steady American male

Emma · UK

Soft British female

Fenrir

Low, gravelly male

Best for

Where Kokoro earns its place.

Drafts, high volume, cost-sensitive jobs.

Hear it in the studio.

Open the studio and generate real audio through Kokoro. No sign-up required to listen.