← Text-to-Speech
Cartesia
sonic-3
Measured 2026-09-08
Run sonic-3 on Speko →One API, every model on this board.
Naturalness
1551
Win % · 95% CI
—
Drift
—
not measured
Synth p50
—
not measured
Robustness
—
Not yet measured: the en-US NSW robustness battery has not been run on this model (row added 2026-09-08 with an auto-MOS naturalness estimate). Pending, not exempt.
Cost / 1M chars
$50.0
About 1 credit per character on Pro, the cheapest paid plan, at its included rate: $5 for 100K credits = $50 per 1M characters.
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