TTS Voice Generation: Cost at 1M Characters/Day
What does it cost to run tts voice generation at 1M characters/day? Self-hosted dedicated GPU vs API provider pricing.
Monthly Cost Comparison at 1M characters/day
| Provider | Monthly Cost | Pricing Model | vs GigaGPU |
|---|---|---|---|
| GigaGPU (RTX 3090) | £89/mo | Fixed | — |
| ElevenLabs Scale | £330/mo | Per-characters | 73% cheaper with GigaGPU |
| Google Cloud TTS | £160/mo | Per-characters | 44% cheaper with GigaGPU |
| Amazon Polly Neural | £120/mo | Per-characters | 26% cheaper with GigaGPU |
Voice at Scale: Per-Character Billing Adds Up Fast
One million characters per day is roughly 250 hours of synthesised speech every month — an audiobook platform generating narration, an e-learning company producing course content, or an IVR system handling thousands of daily calls. TTS providers charge per character, and those fractions of a penny compound relentlessly.
ElevenLabs Scale hits £330/month at this volume. Even Amazon Polly Neural, the cheapest API option, charges £120/month. A dedicated RTX 3090 on GigaGPU at £89/month runs XTTS v2 or Coqui with unlimited character throughput — that is 26-73% cheaper than any API provider.
Annual savings potential: Up to £2,892 per year compared to the most expensive API option, assuming consistent 1M characters/day usage.
Benefits Beyond the Price Tag
- Custom voice cloning: Create and deploy branded voices fine-tuned on your own recordings. API providers restrict voice cloning to expensive enterprise tiers.
- No character caps: API subscriptions impose monthly character limits. A dedicated GPU generates speech until you run out of text to convert.
- Reduced latency: Real-time voice applications need sub-200ms synthesis. Local GPU inference eliminates the network overhead of API calls.
- Data privacy: Text sent for synthesis often contains customer data, product information, or internal communications. Self-hosting keeps it all on your server.
When APIs Are the Pragmatic Choice
- Ultra-high voice quality requirements: ElevenLabs produces some of the most natural-sounding voices available. If voice quality is your primary differentiator, the premium may be justified.
- Low or variable volume: Below 200K characters/day, the cost difference narrows enough that operational simplicity may outweigh savings.
- Quick multi-language deployment: APIs offer dozens of pre-built voices across languages without any training effort.
Hardware Recommendation
The RTX 3090 at £89/month provides the VRAM and compute for 1M characters/day of neural TTS with 20-30% burst capacity. Ships pre-configured with CUDA, Docker, and inference frameworks.
Generate Unlimited Voice Content for £89/Month
Stop paying per character. Synthesise 1M+ characters daily on your own dedicated GPU with no usage caps.
