Voice quality that matches the best commercial TTS — at a fraction of the cost. Built on the most capable open-source speech model available.
Generated by our built-in voices — no post-processing, no editing.
"Welcome to AethonVoice. Studio-grade text-to-speech, powered by open-source AI."
"ฟังดีๆ นะ คำว่า ありがとう แปลว่า ขอบคุณ"
"So I was thinking [pause] maybe we should [laugh] just go for it."
A text-to-speech service built on OmniVoice — the open-source TTS model trained on 581,000 hours of audio across 646 languages, generating speech 30x faster than real-time on GPU.
We add what production apps need: a simple REST API, multilingual text mixing, natural sound effects, batch processing, long-form audio up to 1 hour, and zero-shot voice cloning.
REST API. Submit text, get an MP3. Batch processing, language mixing, voice cloning — all via HTTP.
MCP Server lets any AI assistant generate speech for you. No code required — just ask.
Six reasons teams switch from expensive commercial TTS.
1.30% WER on LibriSpeech, 0.84% CER on Seed-TTS. Benchmarks match ElevenLabs and Google Chirp 3 HD — at $0.015/min.
Mix multiple languages in one sentence. Automatic language detection, native pronunciation per segment, merged into one seamless audio file.
Insert natural pauses, laughter, sighs, and hesitations with simple tags. Pre-recorded clips blend seamlessly with generated speech.
Provide a short audio sample and reproduce that voice across all 21 languages. No training, no waiting — cloning is instant. Four built-in voices available now.
Buy credits when you need them, use them whenever you want. No monthly resets, no use-it-or-lose-it pressure. Your credits stay until you use them.
Fully open weights, code, and training data. No vendor lock-in, no black-box pricing, no dependency on proprietary models that could change terms.
The only high-quality TTS that doesn't charge a premium.
All features included. No tiers. No hidden fees.
| Feature |
AethonVoice
$0.015/min
|
ElevenLabs
$0.06–0.12/min
|
Google TTS
$0.004–0.03/min
|
OpenAI TTS
$0.015–0.03/min
|
|---|---|---|---|---|
| Voice Quality | Excellent | Excellent | Good–Exc. | Good |
| Voice Cloning | ✓ | ✓ | ✕ | ✕ |
| Multilingual Mixing | ✓ Auto | Limited | ✕ | ✕ |
| Paralinguistic Tags | ✓ 4 types | ✕ | SSML only | ✕ |
| Long-form (1hr+) | ✓ | ✓ | ✕ | ✕ |
| Open-Source Model | ✓ | ✕ | ✕ | ✕ |
| Streaming | Planned | ✓ | ✓ | ✓ |
Native-quality pronunciation across 21 languages. Mix target and source language in one utterance. Natural pacing with pauses and emphasis.
Long-form generation up to 1 hour. 4 distinct voices with consistent identity. Paralinguistic tags for expressive narration.
REST API with async job pattern. MCP Server for agent-to-tool integration. Fast inference (30x real-time) for responsive voice output.
Batch API for generating content at scale. Consistent voice across thousands of audio files. Multilingual support without switching providers.
ElevenLabs-grade quality at a fraction of the cost. Simple API — no complex configuration. Free tier to get started.
Send your text to the API with voice, language, and expression tags. One HTTP POST call.
Check job progress. Generation runs at 30x real-time — most requests finish in seconds.
Get a signed URL to your audio file. 24kHz, 96kbps MP3 — optimized for quality and size.
curl -X POST https://aethon.lab.ai/api/tts/submit \
-H "Authorization: Bearer av_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"text": "Hello from AethonVoice!",
"voice": "aris",
"langs": ["en"]
}'We never train on your data. Input text is processed and discarded. Generated audio is stored temporarily for download, then deleted.
Your text and audio are never used to improve our models.
TLS 1.2+ for all connections, AES-256 encryption for stored data.
Audio files deleted after 7 days. Metadata after 30 days. GDPR & PDPA compliant.
Studio-grade TTS in minutes. Choose your path.
Use AethonVoice through any MCP-compatible AI assistant. No code needed.
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