Gemini 2.5 Pro (Dec 2025) text-to-speech model
GoogleReleased Dec 2025.
Gemini 2.5 Pro (Dec 2025) is a text-to-speech (TTS) model from Google. It ranks #71 of 98 on the Artificial Analysis TTS arena with Elo 1040 (95% CI ±12, 2,490 samples). List price is about $18.3 per 1M characters. Released Dec 2025.
Key facts
- Provider
- AA rank
- #71 / 98
- AA Elo (95% CI)
- 1040 ±12
- AA samples
- 2,490
- TTS Arena Elo (uncertainty)
- –
- TTS Arena votes
- –
- TTS Arena win rate
- –
- Price (per 1M chars)
- $18.3
- Released
- Dec 2025
- Open weights
- –
- License
- –
- Voices tested by AA
- 4
- Languages
- –
- Voice cloning
- –
"–" means the upstream sources do not provide this value; we do not guess.
Nearby models
By AA Elo; this model highlighted| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights |
|---|---|---|---|---|---|
| 68 | MMaya1 Maya Research | 1048 | 1401 | – | Open |
| 69 | BHiggs Audio V3 TTS Boson AI | 1045 | – | $15 | Open |
| 70 |  OpenAudio S1 Mini Fish Audio | 1045 | – | $15 | Open |
| 71 | Gemini 2.5 Pro (Dec 2025) Google | 1040 | – | $18.3 | – |
| 72 | HOctave TTS Hume AI | 1039 | 1517 | $87.5 | – |
| 73 | BBland Speech v3 Bland AI | 1035 | – | $40 | – |
| 74 |  Azure Neural Microsoft | 1034 | – | $15 | – |
Alternatives · Cheaper with AA Elo ≥ 1010
| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights |
|---|---|---|---|---|---|
| 5 | Gemini 3.8 Flash TTS Google | 1280 | – | $16.5 | – |
| 8 | Gemini 3.8 Flash-Lite TTS Google | 1252 | – | $11 | – |
| 9 | Fish Audio Drama 3 Preview Fish Audio | 1248 | – | $15 | Open |
| 10 | SSimba 3.2 SpeechifyAI | 1246 | – | $6.6 | – |
| 12 | IRealtime TTS-2 Flash Inworld | 1219 | – | $10.4 | – |
Alternatives · More from Google
| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights |
|---|---|---|---|---|---|
| 5 | Gemini 3.8 Flash TTS Google | 1280 | – | $16.5 | – |
| 8 | Gemini 3.8 Flash-Lite TTS Google | 1252 | – | $11 | – |
| 16 | Gemini 3.1 Flash TTS Google | 1213 | – | $18.3 | – |
| 49 | Gemini 2.5 Flash Lite TTS Google | 1087 | – | $9.2 | – |
| 52 | Studio Google | 1076 | – | $160 | – |
Alternatives · Top 5 open-weight by AA Elo
| # | Model | AA Elo | Arena Elo | Price $/1M chars | Open weights |
|---|---|---|---|---|---|
| 9 | Fish Audio Drama 3 Preview Fish Audio | 1248 | – | $15 | Open |
| 11 | BBreeze TTS 2 BreezeBlue | 1230 | – | $34 | Open |
| 19 |  Ming-3.0-tts Ant Group | 1191 | – | – | Open |
| 38 | Fish Audio S2 Pro Fish Audio | 1110 | – | $15 | Open |
| 41 |  Step Audio EditX (Mar 2026) StepFun | 1100 | – | – | Open |
FAQ
Where does Gemini 2.5 Pro (Dec 2025) rank among TTS models?
As of Oct 25, 2026, Gemini 2.5 Pro (Dec 2025) ranks #71 of 98 on the Artificial Analysis TTS leaderboard with Elo 1040 (±12).
Is Gemini 2.5 Pro (Dec 2025) open source?
The sources do not list Gemini 2.5 Pro (Dec 2025) as open-weight; it is generally used through the Google API.
What is the best Chinese TTS model?
By AA Elo, the top model from a Chinese provider is Qwen-Audio-3.1-TTS-Plus by Alibaba (Elo 1307, #3 overall).
Which top-10 TTS model is cheapest?
Among the AA top 10, the lowest list price is Simba 3.2 (SpeechifyAI) at $6.6 per 1M characters, Elo 1246.
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 1248, #9 overall); 18 open-weight models have an AA score.
Sources
"–" means the upstream sources do not provide this value; we do not guess.