ElevenLabsFish AudioAudio matchupSpeech output
Eleven Flash v2.5vs.Fish Audio S2.1 Pro
Which model is better?
Fish Audio S2.1 Pro does better in independent tests, while Eleven Flash v2.5 is more popular.
Pick Eleven Flash v2.5 for
Pick Fish Audio S2.1 Pro 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
Fish Audio S2.1 Pro aheadFish Audio S2.1 Pro is clearly ahead in 1 of 2 subtests, Eleven Flash v2.5 in none. 1 is level.
Artificial Analysis Provider Voice Arena preference
95 % ranges 1,065 to 1,085 and 1,170 to 1,196, as of November 3, 2026
Artificial Analysis Controlled Voice Arena Elo
95 % ranges 976 to 1,000 and 996 to 1,022, as of November 3, 2026
Source · latest November 3, 2026
All data side by side
Prices are verbatim from the provider, because audio models bill per minute, character or token.
| Eleven Flash v2.5 | Fish Audio S2.1 Pro | |
|---|---|---|
| Task | Speech output | Speech output |
| Developer | ElevenLabs | Fish Audio |
| Status | Active | Active |
| Released | n/a | June 23, 2026 |
| Weights | proprietary | proprietary |
| Runs locally | no | no |
| Price | n/a | Free through 2026-11-30 under fair-use rules; changes with advance notice |
| Popularity (out of 100) | 22 | 0 |