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プライバシーポリシー利用条件
Text-to-Speech API

Affordable Text-to-Speech API

An ElevenLabs alternative at $0.008 per 1,000 characters — Portuguese (PT-BR) voices, streaming synthesis, and pay-as-you-go billing with no subscription.

Brainiall’s text-to-speech API costs $0.008 per 1,000 characters ($8 per million) — 6 to 12x below ElevenLabs API list prices ($0.05–0.10 per 1,000 characters) and about half the price of the neural voices on Google, AWS, and Azure — with Portuguese (PT-BR) voices included and pay-as-you-go billing.

$0.008 per 1,000 characters — $8 per million. No subscription, no monthly minimum, $10 in free credits (1.25 million characters) to start.

Text-to-speech API price comparison

BrainiallElevenLabs APIOpenAI TTSGoogle / AWS / Azure
Price per 1K characters$0.008$0.05–0.10$0.015–0.030$0.016 (neural)
Price per 1M characters$8$50–100$15–30$16
Portuguese (PT-BR) voicesIncludedMultilingual modelsSupportedSupported
Streaming synthesisIncludedIncludedIncludedIncluded
Monthly minimumNoneNone (PAYG available)NoneCloud billing
Free credits to start$10Limited free tierN/AVaries

Competitor prices are list prices published on each provider’s public pricing page, checked July 2026 (ElevenLabs API: $0.05/1K for Flash/Turbo, $0.10/1K for Multilingual models). Brainiall prices are the live pay-as-you-go rates.

What developers build with it
IVR and phone-system prompts in PortugueseAudio versions of articles and newslettersIn-app voice feedback and accessibilityE-learning narration at scaleVoice responses for chatbots and agents

Synthesize speech in one request

POST /v1/tts/synthesize
curl -X POST https://api.brainiall.com/v1/tts/synthesize \
  -H "Authorization: Bearer $BRAINIALL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text": "Olá! Bem-vindo à Brainiall.", "voice": "pf_dora"}' \
  --output speech.wav

Send JSON with the text and an optional voice ID (for example pf_dora, a Portuguese voice) and receive an audio file back — WAV, MP3, or Opus. A streaming endpoint (/v1/tts/synthesize/stream) returns audio sentence by sentence. Get a key at app.brainiall.com.

Frequently asked questions

What is a cheaper alternative to ElevenLabs for text-to-speech?

Brainiall’s TTS API charges $0.008 per 1,000 characters ($8 per million), against ElevenLabs API list prices of $0.05–0.10 per 1,000 characters ($50–100 per million) as of July 2026. That is 6 to 12x less for production narration, IVR, and app voice features, billed strictly by usage with no subscription.

How much does it cost to convert 1 million characters to audio?

One million characters — roughly the length of a long novel, or about 20 hours of finished audio — costs $8 on Brainiall. The same volume costs $50–100 on the ElevenLabs API, $15–30 on OpenAI TTS, and about $16 on the neural voices of Google, AWS, or Azure, at list prices.

Are Portuguese (PT-BR) voices available?

Yes. Portuguese voices such as pf_dora are available out of the box, alongside English and other languages. Pass the voice ID in the request body; omit it to use the default voice.

How does the voice quality compare to ElevenLabs?

Brainiall uses modern neural voices built for production workloads — narration, IVR, in-app speech, e-learning. ElevenLabs remains a strong choice for voice cloning and highly expressive character work. For most product features, the practical test is simple: run your own script through both and compare — the $10 free credit covers 1.25 million characters of testing.

Is there a free tier?

Every new account gets $10 in free credits — 1.25 million characters of synthesis — with no credit card required.

Which audio formats does the API return?

WAV (16-bit PCM, 24 kHz mono), MP3, and Opus. The streaming endpoint returns WAV chunks sentence by sentence for low-latency playback.

Ship voice features for $8 per million characters.

Get a free API key with $10 in credits — 1.25 million characters. No credit card, no subscription, cancel anytime.

Get free API key