ElevenLabs 與四款免費語音克隆模型的盲測：以作者本人聲音作比較
ElevenLabs vs four free voice clones: a blind test on my own voice
作者以本人聲音盲測 ElevenLabs 與四款免費語音克隆模型，Fish S2 Pro 平均排名第一（1.25），Qwen3-TTS 的 ECAPA 相似度分數則最高（.61）。聽感排名與相似度分數對模型的排序並不一致，測試亦比較了處理速度、每分鐘音訊成本和冷啟動時間。Fish S2 Pro 授權為非商用，商用授權未列價格；Qwen 則已允許透過生成語音賺取收入。
I pay ElevenLabs $6 a month for a clone of my voice. Four free voice models say they are as good. So I made a clone of my own voice with each of them, hid which clip was which, and ranked them by ear. One clip in every round is the real me.
The test
One recording of me, made for this test, is the source of every clone. ElevenLabs' Instant clone takes 1 to 2 minutes of it; each free model took the length its maker's card asks for. Every model ran on its default settings and the first take is the clip. The free models are Chatterbox (Resemble AI), Qwen3-TTS (Alibaba), IndexTTS-2.5 (bilibili) and Fish S2 Pro (Fish Audio), run on one rented Runpod A40 each.
Four rounds, six clips in each (five clones and the real me), shuffled by a script. I ranked all six blind and the key was opened after each round:
- A plain sentence: "I make videos about AI, and this is the first one where the AI is talking as me."
- A name and a number: "Hey, Derwin here, we just shipped version 2.3 today."
- A sad line: "I really thought this one would work out, but I guess it's time to let it go."
- Indonesian: "Aku besar di Indonesia, jadi bahasa ini yang paling dekat sama aku."
Only ElevenLabs and Fish S2 Pro list Indonesian among their languages; Qwen3-TTS and IndexTTS-2.5 do not, and Chatterbox Multilingual lists Malay, not Indonesian.
How the clones ranked
Clone rank in each round, 1 is the best clone (the real me was my number one every time and is left out):
| Model | R1 | R2 | R3 | R4 | Average |
|---|---|---|---|---|---|
| Fish S2 Pro | 2 | 1 | 1 | 1 | 1.25 |
| Qwen3-TTS | 1 | 2 | 3 | 3 | 2.25 |
| ElevenLabs | 3 | 5 | 2 | 2 | 3.00 |
| Chatterbox | 4 | 4 | 4 | 4 | 4.00 |
| IndexTTS-2.5 | 5 | 3 | 5 | 5 | 4.50 |
Fish beat ElevenLabs in all four rounds. Qwen beat it in rounds 1 and 2, Chatterbox only in round 2, where ElevenLabs came last. My two guesses on camera, ElevenLabs in round 1 and Qwen in round 2, were both wrong.
One person made one ranking, and the fan noise in my own recording gave the real clip away, which the film admits. So I also ran a speaker-similarity score (ECAPA, SpeechBrain), each clip against that round's real line. Average: Qwen .61, Fish .57, Chatterbox .46, ElevenLabs .43, IndexTTS .36. My real voice against its other three lines scores .69. The score and my ears disagree about who is closest, which is the point of doing both.
Cost and speed
Measured on 31 October 2026, four lines per model, one rented A40 at $0.00034 a second, execution time only:
| Model | Seconds of processing per second of audio | Dollars per minute of audio | Cold start |
|---|---|---|---|
| Chatterbox | 0.44 | $0.009 | 291 s |
| Qwen3-TTS | 1.72 | $0.035 | 207 s |
| Fish S2 Pro | 2.00 | $0.041 | 347 s and 227 s |
| IndexTTS-2.5 | not measured | not measured | 476 s and 357 s |
| ElevenLabs Starter | 0.49 | $0.054 | none |
IndexTTS-2.5 never stayed up long enough to time. A free model is not free: a rented GPU boots for 3 to 8 minutes, at 7 to 16 cents, before it makes a sound. ElevenLabs' $0.054 a minute holds only if the whole 40,000-credit plan, about 112 minutes of audio, is used.
The catch
My verdict on camera: considering the ranking, I'd cancel ElevenLabs and go with Fish for future videos. Fish S2 Pro's licence is non-commercial, so earning from its voice needs a commercial licence, and Fish lists no price for one. Qwen, the next best clone, already allows earning.
The film is a code-rendered animation built from generated artwork. Nyx, the narrator, speaks in an authorized synthetic ElevenLabs voice; the music bed and the sound effects are generated with ElevenLabs too. Product logos belong to their owners.
來源：DEV Community · dev.to