Fish AudioGoogleAudio matchupSpeech output
Fish Audio S2 Provs.Gemini 3.8 Flash-Lite TTS
Which model is better?
Gemini 3.8 Flash-Lite TTS does better in independent tests, while Fish Audio S2 Pro is available with open weights.
Pick Fish Audio S2 Pro for
Pick Gemini 3.8 Flash-Lite TTS for
Shared tests
Independent evaluators and leaderboards only, the newest shared snapshot per evaluator. With 95 % ranges a lead counts when they do not overlap; for hit rates, when it holds in a 95 % test. Without any uncertainty figure at most “slightly ahead”.
Artificial Analysis
Gemini 3.8 Flash-Lite TTS aheadGemini 3.8 Flash-Lite TTS is clearly ahead in 2 of 2 subtests, Fish Audio S2 Pro in none.
Artificial Analysis Provider Voice Arena preference
95 % ranges 1,097 to 1,119 and 1,241 to 1,267, as of November 3, 2026
Artificial Analysis Controlled Voice Arena Elo
95 % ranges 996 to 1,018 and 1,040 to 1,064, as of November 3, 2026
Source · latest November 3, 2026
VoiceArena
Gemini 3.8 Flash-Lite TTS aheadGemini 3.8 Flash-Lite TTS is clearly ahead in 1 of 2 subtests and slightly in 1, Fish Audio S2 Pro in none.
VoiceArena TTS Elo: US English
95 % ranges 929 to 943 and 1,068 to 1,096, as of October 28, 2026
VoiceArena TTS v1, US English, All, Elo
as of October 17, 2026
Source · latest October 28, 2026
All data side by side
Prices are verbatim from the provider, because audio models bill per minute, character or token.
| Fish Audio S2 Pro | Gemini 3.8 Flash-Lite TTS | |
|---|---|---|
| Task | Speech output | Speech output |
| Developer | Fish Audio | |
| Status | Open weights | Active |
| Released | March 9, 2026 | September 22, 2026 |
| Weights | open | n/a |
| Runs locally | yes | no |
| Price | n/a | $0.50 per 1M text tokens through December 31, 2026, then $1 per 1M text tokens from January 1, 2027 |
| Popularity (out of 100) | 51 | 0 |