OpenAudio S1
Jun 2025
OpenAudio S1Compare inon
OpenAudio S1 measured on 3 of 3 Text to speech benchmarks3
BenchmarkByScoreRank
Multimodal1
Other2
No benchmark matches
$15per 1M characters
1,086arena Elo
Jun 2025released
Exact native tariff; see source for billing scope.Price covers
Ranking?
Full ranking →···
29Fish Audio S2 Pro1,002.630OpenAudio S11,00031Multilingual v2997Strong at
Alternatives?
ModelScoreCostPriceWhat changes
SCheaperSimba 3.2wins 62%-56%$6.58AOpenMing 3.0 TTSwins 60%——
CheaperVoxtral 3 TTSwins 60%-13%$13ICheaperRealtime TTS-2 Flashwins 60%-31%$10.42SCheaperSimba 3.0wins 56%-56%$6.58ModelScoreCostPriceWhat changes
SSimba 3.2wins 62%-56%$6.58Voxtral 3 TTSwins 60%-13%$13IRealtime TTS-2 Flashwins 60%-31%$10.42SSimba 3.0wins 56%-56%$6.58SSoniox TTS Real-Time v2wins 43%-5%$14.23ModelScoreCostPriceWhat changes
SSimba 3.2wins 62%-56%$6.58SSimba 3.0wins 56%-56%$6.58IRealtime TTS-2 Flashwins 60%-31%$10.42Voxtral 3 TTSwins 60%-13%$13Fish Audio Drama 3 PreviewOpenwins 59%same$15Benchmarks
in Speech & VoiceAA TTS controlled voice1,000#30
AA TTS provider voice1,086.1#49
TTS Arena (v2)1,488#10
FAQ
How much does OpenAudio S1 cost?›
$15 per 1M characters.
Is OpenAudio S1 free to use?›
There is no free API; it costs $15 per 1M characters.
How good is OpenAudio S1, and what is it best at?›
#49 of 96 in Text to speech.
Is OpenAudio S1 better than Fish Audio S2 Pro?›
On AA TTS controlled voice, OpenAudio S1 scores 1,000 vs 1,002.6 — about the same. It is 0% more expensive.
When was OpenAudio S1 released? Is there a newer version?›
Released 2025-06-03. It is the current version in its line.
What is OpenAudio S1?›
OpenAudio S1 is a speech & voice model from Fish Audio, released Jun 2025.
What are the best alternatives to OpenAudio S1?›
Simba 3.2 (cheaper), Ming 3.0 TTS (open weights).