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Your request will cost $0.02 per 1000 character.
Kokoro TTS delivers natural-sounding speech synthesis with 82 million parameters at $0.02 per 1,000 characters. Trading model size for efficiency, it matches the quality of models 10-50x larger while running significantly faster and cheaper. Built for developers who need production-grade voice synthesis without enterprise-scale infrastructure costs.
Use Cases: Voice Agents & Assistants | Content Narration & Audiobooks | Multi-language Product Localization
Kokoro TTS achieves comparable quality to larger TTS models while operating at significantly more cost-effective rates, making high-quality speech synthesis accessible for high-volume applications.
| Metric | Result | Context |
|---|---|---|
| Model Size | 82M parameters | 10-50x smaller than comparable quality models |
| Cost per Inference | $0.02 per 1,000 characters | 50,000 characters per $1.00 on fal |
| Voice Options | 19 voices | 10 female (af_), 9 male (am_) variants |
| Speed Control | 0.1x to 5.0x | Adjustable playback rate for different use cases |
| Output Format | WAV audio | Standard format compatible with all platforms |
Kokoro TTS uses a lightweight architecture that prioritizes parameter efficiency over raw model size. While most high-quality TTS models require hundreds of millions or billions of parameters, Kokoro achieves comparable naturalness and expressiveness with just 82 million parameters through optimized training and architectural choices.
What this means for you:
Lower latency: Smaller model size translates to faster inference times, critical for real-time voice applications and interactive agents
Cost efficiency: At $0.02 per 1,000 characters, you can generate 50,000 characters for $1.00, enabling high-volume use cases like audiobook production or large-scale content narration
Voice variety: 19 distinct voices (10 female, 9 male) provide flexibility for different brand voices, character work, or user preference matching without additional fine-tuning
Playback control: Speed adjustment from 0.1x to 5.0x enables use cases from meditative content (slower) to rapid information delivery (faster) using the same base synthesis
| Spec | Details |
|---|---|
| Architecture | Kokoro TTS |
| Input Formats | Text strings (UTF-8) |
| Output Formats | WAV audio file |
| Voice Selection | 19 pre-trained voices via voice parameter |
| License | Commercial use permitted |
API Documentation | Quickstart Guide | Enterprise Pricing
Elevenlabs Text to Audio – Kokoro TTS ($0.02/1K chars) prioritizes cost efficiency and lightweight deployment for high-volume applications. Elevenlabs offers more advanced voice cloning and emotional range control for premium voice experiences where budget is less constrained.
Kokoro TTS (Mandarin Chinese) – Mandarin-specific version handling tonal language requirements. American English variant handles English phonetics and prosody, while Mandarin version manages tonal variations and character-based input for Chinese language applications.