whatmodel.sh / tts / Eleven Flash v2.5
Eleven Flash v2.5
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Eleven Flash v2.5 is a closed-weights text-to-speech model from ElevenLabs, released December 2024. Licence: proprietary.
Score within the Vapi Humanness · Bradley–Terry rating, 2026-09-25 snapshot comparison set only.
$ how it compares
The text-to-speech models ranked either side of Eleven Flash v2.5, out of 148 with a score, then more from ElevenLabs.
| # | model | score | where | ||
|---|---|---|---|---|---|
| 36 |  MiniMax Speech-02-HD | 63±3 | api $100.00/M chars | ||
| 37 |  Fish Audio S2 Pro | 63±1 | api $15.00/M chars +local | ||
| 38 | Eleven Flash v2.5 | 63±2 | api $50.00/M chars | ||
| 39 |  IndexTTS (v1) | 62±3 | local | ||
| 40 |  F5-TTS v1 Base | 62±3 | local | ||
| more from ElevenLabs | |||||
| 21 | Eleven v3 | 65±1 | api $100.00/M chars | ||
| 30 | Eleven Turbo v2.5 | 64±4 | api $50.00/M chars | ||
| 45 | Eleven Flash v2 | 62±3 | api $50.00/M chars | ||
see all text-to-speech models · find the ones that fit your machine
$ what it's good at
voice cloning█···█······█ #2 of 3 · 25% of its score · 4 tests
Beats Eleven v3 here, though they rank higher overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Seed-TTS · report split unspecified, speaker similarity | 41.3% ✎ | ██·········█ beats 1/2 | 8.6% |
| MiniMax TTS · 9-language speaker similarity | 53.8% ✎ | ██·········█ beats 1/2 | 8.4% |
| MiniMax TTS · 9-language WER (Voxtral ASR) | 1.6% ✎ | █····█·····█ beats 2/2 | 4.5% |
| Seed-TTS · report split unspecified (Voxtral ASR) | 0.9% ✎ | █··········▄ beats 2/2 | 3.9% |
other tests4 not in a task · 73% of its score
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Vapi Humanness · Bradley–Terry rating, 2026-09-25 snapshot | 1191.0 ✎ | ▁···▁▃··█▄▁▇ beats 6/18 | 37% |
| Vapi Humanness · historical Elo, 2026-06-10 | 1225.4 ✎ | ▃·▃▃▃·▃██▃·▃ beats 8/12 | 19% |
| Rime ContentBench · paired human preference vs Rime Coda (US English) | 0.16 / 2 ✎ | ▄·▄········█ beats 3/3 | 8.4% |
| Rime SupportBench · paired human preference vs Rime Coda (US English) | -0.12 / 2 ✎ | █·······█·██ beats 3/3 | 7.9% |
$ where to run it
Through an API
api · $50.00/M chars · elevenlabs.io ↗ · price sourceUSD per 1M input characters: ElevenLabs lists Flash / Turbo Text to Speech at $0.05 per 1K characters (x1000). Product: ElevenAPI text to speech. API model: eleven_flash_v2_5. Settings: standard API rate (same per-1K rate on pay-as-you-go and plan tiers shown). Price basis: published list rate, per-1K to per-1M scaling only. Exclusions: subscription fees, taxes. Currency: USD. ElevenLabs official API pricing page, observed 2026-09-25.
$ how the score was worked out · The Humanness Index by Vapi ·… 37%, Voxtral TTS 25%, The Humanness Index by Vapi ·… 19% and 1 more
Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works
| source | results | share of the score |
|---|---|---|
 The Humanness Index by Vapi · September 2026 public standings | 1 | 37% |
 Voxtral TTS | 4 | 25% |
| The Humanness Index by Vapi · June 2026 production export | 1 | 19% |
 Rime Alpha TTS Benchmark v1.0.0 · SupportBench and ContentBench paired human preference | 2 | 16% |
| prior · pull toward the middle | 2% | |
| weighted average | = 62.5 |
$ improve this page
Use a short GitHub form or edit the data through a pull request. Every number needs a source; here's which ones we can use.
data updated · sources and licences · json