Rankings data by OpenRouter is licensed under CC BY 4.0. Reuse and republish it with attribution. The Data API docs cover the citation format and JSON access to these datasets.
| Rank | Model | Author | requests | Change |
|---|---|---|---|---|
| 1 | Gemini 3.8 Flash TTS | 1.04M requests | >999% | |
| 2 | Gemini 3.1 Flash TTS Preview | 594K requests | -24% | |
| 3 | Kokoro 82M | hexgrad | 392K requests | -26% |
| 4 | Grok Voice TTS 1.0 | x-ai | 296K requests | +8% |
| 5 | Gemini 3.8 Flash Lite TTS | 265K requests | >999% | |
| 6 | S2.1 Pro | fish-audio | 159K requests | +94% |
| 7 | S2.1 Pro Free (free) | fish-audio | 120K requests | +6% |
| 8 | Qwen-Audio-3.0-TTS Plus | qwen | 84K requests | -15% |
| 9 | Aura-2 | deepgram | 80K requests | +59% |
| 10 | MAI-Voice-2 | microsoft | 78K requests | +36% |
Usage data through