Gemini 2.5 Pro (Dec 2025)
Dec 2025
Gemini 2.5 Pro (Dec 2025)Compare inonAA TTS provider voice
$18.31per 1M characters
1,042arena Elo
Dec 2025released
Exact native tariff; see source for billing scope.Price covers
Ranking?
Full ranking →···
70OpenAudio S1 Mini1,04471Gemini 2.5 Pro (Dec 2025)1,042.372Octave TTS1,038.3Strong at
Alternatives?
ModelScoreCostPriceWhat changes
SCheaperSimba 3.2wins 77%-64%$6.58KBetterKokoro 82M v1.0Openwins 53%-95%$0.99
OpenFish Audio Drama 3 Previewwins 76%-18%$15
CheaperVoxtral 3 TTSwins 74%-29%$13ICheaperRealtime TTS-2 Flashwins 73%-43%$10.42ModelScoreCostPriceWhat changes
SSimba 3.2wins 77%-64%$6.58Fish Audio Drama 3 PreviewOpenwins 76%-18%$15Voxtral 3 TTSwins 74%-29%$13IRealtime TTS-2 Flashwins 73%-43%$10.42VLuna TTSwins 72%-18%$15ModelScoreCostPriceWhat changes
KKokoro 82M v1.0Openwins 53%-95%$0.99SSimba 3.2wins 77%-64%$6.58SSimba 3.0wins 61%-64%$6.58Gemini 2.5 Flash Lite TTSwins 56%-50%$9.15Gemini 2.5 Flash TTS (Dec 2025)wins 53%-50%$9.15ModelScoreCostPriceWhat changes
Fish Audio Drama 3 PreviewOpenwins 76%-18%$15BBreeze TTS 2Openwins 74%+86%$34AMing 3.0 TTSOpenwins 70%——Fish Audio S2 ProOpenwins 60%-18%$15
Step Audio EditX (Mar 2026)Openwins 58%——ModelScoreCostPriceWhat changes
Gemini 3.8 Flash TTSwins 80%—*—Gemini 3.8 Flash-Lite TTSwins 78%—*—Gemini 3.1 Flash TTSwins 73%——Gemini 2.5 Flash Lite TTSwins 56%-50%$9.15Journeywins 55%+774%$160Studiowins 55%+774%$160Gemini 2.5 Flash TTS (Dec 2025)wins 53%-50%$9.15Chirp 3: HDwins 53%+64%$30All Google models →Benchmarks
in Speech & VoiceAA TTS provider voice1,042.3#71
FAQ
How much does Gemini 2.5 Pro (Dec 2025) cost?›
$18.31 per 1M characters.
Is Gemini 2.5 Pro (Dec 2025) free to use?›
There is no free API; it costs $18.31 per 1M characters.
How good is Gemini 2.5 Pro (Dec 2025), and what is it best at?›
#70 of 96 in Text to speech.
Is Gemini 2.5 Pro (Dec 2025) better than OpenAudio S1 Mini?›
On AA TTS provider voice, Gemini 2.5 Pro (Dec 2025) scores 1,042.3 vs 1,044 — about the same. It is 22% more expensive.
When was Gemini 2.5 Pro (Dec 2025) released? Is there a newer version?›
Released 2025-12-10. It is the current version in its line.
Is Gemini 2.5 Pro (Dec 2025) open source?›
No, Gemini 2.5 Pro (Dec 2025) is a closed model available through an API. The closest open-weights option here is Fish Audio Drama 3 Preview.
What is Gemini 2.5 Pro (Dec 2025)?›
Gemini 2.5 Pro (Dec 2025) is a closed speech & voice model from Google, released Dec 2025.
What are the best alternatives to Gemini 2.5 Pro (Dec 2025)?›
Simba 3.2 (cheaper), Kokoro 82M v1.0 (better), Fish Audio Drama 3 Preview (open weights).