Cartesia API pricing
Cartesia has one ranked offering on Syftly. Prices below are per-unit list prices from dated public sources — token- or credit-priced plans are flagged, and a missing price is shown as missing, never guessed.
* token-/credit-priced — the headline understates real per-unit cost, so it is excluded from cheapest-rankings.
Source: cartesia.ai/pricing (plan tiers $0/$5/$49/$299, minutes-based allowances, instant cloning from Pro and professional cloning from Startup); Artificial Analysis Speech Arena provider-voice leaderboard (Sonic 3.5 1203 ELO rank 7; Sonic 3.6 1285 ELO rank 1); Coval TTS benchmark via Openbenchmarks pulled 2026-08-20 (sonic-3.5 271ms P50); MarkTechPost 2026-08-18 (Sonic 3.6 launch and beta status) 2026-08-20 · ranking updated 2026-08-20
Cheapest comparable text-to-speech alternative: Deepgram Aura-2 ($30 per 1M chars) — compare them.
Full ranking: Text-to-speech