OpenAI · Voice & TTS
OpenAI TTS-1 Pricing
$15 per 1M input characters
per million characters
Free tier
No recurring API allowance confirmed in this comparison.
Commercial use
Check the provider's current API terms.
Billing unit
per million characters
Advantages
- The listed billable unit is explicit and the provider source is linked.
- Test voice quality, latency, language, and terms on your own workload.
Disadvantages
- Included plan credits, commercial terms, and voice rights vary by account.
- Actual costs can depend on plan and usage conditions.
Example workload cost
For 250,000 characters, the estimate is $3.75 at the listed rate.
This is an estimate from the listed rate, not a vendor quote. Actual charges can vary with model options, discounts, minimums, retries, and plan terms.
OpenAI model documentation lists speech-generation pricing per million input characters; its policies require disclosing AI-generated voice.
Verify on OpenAI's pricing page →
The date marks the latest check of the model and displayed rate against the linked source; other plan and regional conditions may differ. How pricing data is collected.
Compare with other Voice & TTS tools
| Tool | Price | Free tier |
|---|---|---|
| OpenAI TTS-1OpenAI | $15 per 1M input characters | No recurring API allowance confirmed in this comparison. |
| OpenAI TTS-1 HDOpenAI | $30 per 1M input characters | No recurring API allowance confirmed in this comparison. |
| Google Cloud TTS StandardGoogle Cloud | $4 per 1M characters after monthly free allowance | 4 million characters/month, then paid usage. |
| Google Cloud TTS Chirp 3 HDGoogle Cloud | $30 per 1M characters after monthly free allowance | 1 million characters/month, then paid usage. |
| ElevenLabs Flash v2.5 / TurboElevenLabs | $0.05 per 1,000 characters (API pay-as-you-go) | Free account plan exists; API usage and rights vary by plan. |
| ElevenLabs Multilingual v2ElevenLabs | $0.10 per 1,000 characters (API pay-as-you-go) | Free account plan exists; API usage and rights vary by plan. |
| Deepgram Aura-1 TTSDeepgram | $0.015 per 1,000 characters (pay-as-you-go) | No recurring API allowance confirmed in this comparison. |
| Deepgram Aura-2 TTSDeepgram | $0.030 per 1,000 characters (pay-as-you-go) | No recurring API allowance confirmed in this comparison. |
| Deepgram Flux TTSDeepgram | $0.045 per 1,000 characters (standard rate) | No recurring API allowance confirmed in this comparison. |
| Grok Voice API TTSxAI | $15 per 1M characters | No recurring API allowance confirmed in this comparison. |