Sonic 3 measured on 2 of 3 Text to speech benchmarks2
BenchmarkByScoreRank
No benchmark matches
$49per 1M characters
1,056arena Elo
Oct 2025released
Exact native tariff; see source for billing scope.Price covers
Ranking?
Full ranking →···
36Higgs Audio V3 TTS95837Sonic 394738Soniox TTS Real-Time v2941Strong at
Alternatives?
ModelScoreCostPriceWhat changes
HCheaperHeyGen Voicewins 81%-39%$30SBetterSimba 3.2wins 69%-87%$6.60AOpenMing 3.0 TTSwins 67%——
CheaperQwen Audio 3.1 TTS Pluswins 80%-61%$19.30
CheaperEleven v4 Turbowins 77%-18%$40ModelScoreCostPriceWhat changes
HHeyGen Voicewins 81%-39%$30Qwen Audio 3.1 TTS Pluswins 80%-61%$19.30Eleven v4 Turbowins 77%-18%$40IRealtime TTS-2wins 76%-29%$35Qwen Audio 3.0 TTS Pluswins 73%-61%$19.30ModelScoreCostPriceWhat changes
SSimba 3.2wins 69%-87%$6.60SSimba 3.0wins 63%-87%$6.60IRealtime TTS-2 Flashwins 66%-79%$10.40
Voxtral 3 TTSwins 67%-73%$13
Fish Audio Drama 3 PreviewOpenwins 66%-69%$15ModelScoreCostPriceWhat changes
AMing 3.0 TTSOpenwins 67%——Fish Audio Drama 3 PreviewOpenwins 66%-69%$15BBreeze TTS 2Openwins 60%-31%$34OpenAudio S1 MiniOpenwins 58%-69%$15Voxtral TTSOpenwins 58%-67%$16ModelScoreCostPriceWhat changes
CSonic 3.6wins 76%same$49CSonic 3.5wins 73%same$49All Cartesia models →History
3 versionsFAQ
How much does Sonic 3 cost?›
$49 per 1M characters.
Is Sonic 3 free to use?›
There is no free API; it costs $49 per 1M characters.
How good is Sonic 3, and what is it best at?›
#60 of 96 in Text to speech.
Is Sonic 3 better than Higgs Audio V3 TTS?›
On AA TTS controlled voice, Sonic 3 scores 947 vs 958 — about the same. It is 227% more expensive.
When was Sonic 3 released? Is there a newer version?›
Released 2025-10-29. It is the current version in its line.
Is Sonic 3 open source?›
No, Sonic 3 is a closed model available through an API. The closest open-weights option here is Ming 3.0 TTS.
What is Sonic 3?›
Sonic 3 is a closed speech & voice model from Cartesia, released Oct 2025.
What are the best alternatives to Sonic 3?›
HeyGen Voice (cheaper), Simba 3.2 (better), Ming 3.0 TTS (open weights).