SpeechifyAI

SpeechifyAI is Speechify's developer service for text-to-speech and voice cloning. Developers can generate speech, stream audio, and integrate speech into an application. The developer API is billed separately from the Speechify Reader app used to read documents aloud.

Key Highlights

• Text-to-speech API with catalog voices
• Streaming audio for application workflows
• Voice cloning on eligible plans
• SSML controls for speech output
• Enterprise voice-agent deployments scoped separately

What Makes It Different

SpeechifyAI exposes speech generation through developer interfaces rather than only a consumer reading screen. An application can request speech and work with streamed output. Enterprise voice-agent deployments have a separate buying path, so text-to-speech allowances should not be read as included agent minutes.

Features & Capabilities

Developers supply text and choose a voice through the API. Streaming lets an application receive audio as it is generated. Voice cloning creates a voice for later speech requests, subject to the service's setup requirements and usage terms.

Character-based usage draws from the plan's included balance. Paid subscriptions can continue through a prepaid top-up balance after included usage is exhausted. The service provides developer documentation and SDKs for integrating authentication, requests, and returned audio.

User Ratings and Testimonials

Evaluate speech with your actual scripts, languages, and playback requirements. Listen for pronunciation, pacing, and unwanted artifacts, and measure streaming behavior in your own application. Consumer Reader reviews do not establish the performance or economics of the developer API.

Pricing & Value

• Free: $0/month, 500,000 characters/month; pauses when exhausted
• Starter: $10/month, included credit equivalent to 1.9M TTS characters; top-ups $10/million
• Pro: $99/month, equivalent to 13.5M characters; top-ups $8/million
• Scale: $499/month, equivalent to 78M characters; top-ups $6/million

Paid character equivalents describe an included credit balance, not a separate unlimited allowance. Enterprise voice-agent deployments are scoped separately.