Simba 3.5 text-to-speech model
SpeechifyAI
Simba 3.5 is a text-to-speech (TTS) model from SpeechifyAI. It ranks #5 of 104 on the Artificial Analysis TTS arena with Elo 1293 (95% CI ±17, – samples).
Key facts
- Provider
- SpeechifyAI
- AA rank
- #5 / 104
- AA Elo (95% CI)
- 1293 ±17
Not yet available: AA samples, TTS Arena Elo (uncertainty), TTS Arena votes, TTS Arena win rate, Price (per 1M chars), Released, Open weights, License, Voices tested by AA, Languages, Voice cloning
Who it is for (from the data)
- Best-quality seekers: #5 of 104 on Artificial Analysis, in the top 10.
- Use via SpeechifyAI's service or API; the sources do not list it as open weights.
- Existing SpeechifyAI users: this vendor has 3 models on the board.
Nearby models
By AA Elo; this model highlighted| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights | Δ |
|---|---|---|---|---|---|---|
| 2 |  Eleven v4 Turbo ElevenLabs | 1337 | – | $40 | – | +44 |
| 3 |  Qwen-Audio-3.1-TTS-Plus Alibaba | 1297 | – | $19.3 | – | +4 |
| 4 | CSonic 3.6 Cartesia | 1296 | – | $49 | – | +3 |
| 5 | SSimba 3.5 SpeechifyAI | 1293 | – | – | – | |
| 6 |  Gemini 3.8 Flash TTS Google | 1283 | – | $16.5 | – | -10 |
| 7 |  Fish Audio Drama 3 Fish Audio | 1274 | – | – | – | -19 |
| 8 | SLightning V3.1 Pro (Oct 2026) Smallest.ai | 1272 | – | – | – | -21 |
Alternatives · More from SpeechifyAI
Alternatives · Top 5 open-weight by AA Elo
| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights |
|---|---|---|---|---|---|
| 13 | Fish Audio Drama 3 Preview Fish Audio | 1239 | – | $15 | Open |
| 14 | BBreeze TTS 2 BreezeBlue | 1229 | – | $34 | Open |
| 24 |  Ming-3.0-tts Ant Group | 1185 | – | – | Open |
| 45 | Fish Audio S2 Pro Fish Audio | 1106 | – | $15 | Open |
| 47 |  Step Audio EditX (Mar 2026) StepFun | 1099 | – | – | Open |
How to read the scores
- AA Elo: the Elo score from the Artificial Analysis speech arena. Listeners blind-compare two clips and pick the better one; "±" is the 95% confidence interval.
- TTS Arena Elo: Elo from TTS Arena V2 community blind votes. The two boards use different scales, so do not subtract one from the other.
- If the gap between two models is smaller than their combined intervals, the order is not statistically reliable; treat them as the same tier. More samples or votes mean narrower intervals.
FAQ
Where does Simba 3.5 rank among TTS models?
As of Nov 11, 2026, Simba 3.5 ranks #5 of 104 on the Artificial Analysis TTS leaderboard with Elo 1293 (±17).
Is Simba 3.5 open source?
The sources do not list Simba 3.5 as open-weight; it is generally used through the SpeechifyAI API.
Which top-10 TTS model is cheapest?
Among the AA top 10, the lowest list price is Gemini 3.8 Flash TTS (Google) at $16.5 per 1M characters, Elo 1283.
What is the best open-source TTS model?
By AA Elo, the top open-weight model is Fish Audio Drama 3 Preview by Fish Audio (Elo 1239, #13 overall); 18 open-weight models have an AA score.
Who makes Simba 3.5?
Simba 3.5 is made by SpeechifyAI.
How far is Simba 3.5 from #1?
#1 on Artificial Analysis is Eleven v4 (Elo 1338); Simba 3.5 has Elo 1293, 45 points behind.
Sources
17NAS syncs the upstream leaderboards daily; this page's data was synced on Nov 11, 2026.
"–" means the upstream sources do not provide this value; we do not guess.