Listener Elo 1,038 ±12 on Artificial Analysis (read October 22, 2026); latency not measured.
Benchmark summary: No speed tier: Coval, the source of the tiers, does not measure this model.
Google Gemini 2.5 Pro (Dec 2025) is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Speed tier
Not measured by Coval
No speed tier: Coval, the source of the tiers, does not measure this model.
Data read October 22, 2026. No combined score: methodology
Gradium TTS vs Google Gemini 2.5 Pro (Dec 2025) Fastest TTS APIs, by speed tierNeither Coval nor Speko measures Google Gemini 2.5 Pro (Dec 2025)'s latency, so it has no speed tier and does not appear in the speed tiers.
In the Artificial Analysis Speech Arena it holds 1,038 ±12 Elo (95% interval), 71st highest of the 98 models Artificial Analysis rates; scores whose intervals overlap are a tie. In its Customer Service category, Artificial Analysis places it 75th, at 1,049 Elo.
Speko has not scored its pronunciation of numbers and dates.
Artificial Analysis lists $18.3. List prices, as each source prints them.
Alibaba Qwen-Audio-3.0-TTS-Plus is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.
Alibaba Qwen-Audio-3.1-TTS-Plus is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.
Alibaba Qwen3 TTS is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.