MiniMax
Speech 02 HD
Text Speech 02 is MiniMax's flagship HD audio model. It delivers ultra-high-fidelity 48kHz output with natural emotional cues like breaths and laughter. Ideal for real-time conversational AI, it bridges the gap between text and human-like speech.

Modalities

Input: Text
Output: Audio

Input

Output

API Usage Examples
curl --request POST "https://gptproto.com/api/v3/minimax/speech-02-hd/text-to-audio" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "text": "Welcome to our advanced text-to-speech system! Experience high-quality voice synthesis with natural pronunciation and clear articulation.",
    "voice_id": "Wise_Woman",
    "speed": 1,
    "volume": 1,
    "pitch": "0",
    "emotion": "happy",
    "english_normalization": false,
    "sample_rate": 8000,
    "bitrate": 32000,
    "channel": 1,
    "format": "mp3",
    "language_boost": "English",
    "enable_sync_mode": ""
  }'
Speech 02 HD pricing

Start from the cost of a single sample and pick a testing budget. GPTProto rates are 40% below list price.

GPTProto · Price est.

Estimated from the rate card. Final charges may vary.
40% off

No extra settings

Cost per request$0.00822$0.0137

Top up

GPTProto vs official pricing.
Requests
You pay
40% off
$100
You receive$100.00

Save$66.66 (40%)vs MiniMax official

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Speech 2.5 Turbo Preview Voice Clone
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Text Speech 02 Key Features

Advanced technical capabilities that make speech-02-hd a leader in the audio generation market.

48kHz HD Audio Output

Experience superior clarity with 48kHz sampling. This high-definition text to speech output eliminates aliasing, making it ideal for professional dubbing and media.

Real-time 210ms Latency

Achieve near-instant response times. The speech-02-hd model is optimized for low-latency text processing, ensuring your conversational AI feels responsive and human.

Native Emotional Prosody

The 02 model adds realistic breaths, laughter, and sighs. It transforms flat text into emotionally nuanced speech, achieving a industry-leading 4.62 MOS score.

3-Second Voice Cloning

Replicate any voice with just a 3-second sample. Text Speech 02 maintains the original speaker's timbre and rhythm across all supported languages and text inputs.

Text Speech 02 Frequently Asked Questions

Expert answers regarding the Text Speech 02 (speech-02-hd) model capabilities, integration, and technical performance for your audio projects.

How does Text Speech 02 achieve such high fidelity?

The model uses a native 48kHz sampling rate, which is double the standard of most competitors. By processing text and audio natively within its weights, it avoids the digital artifacts common in traditional pipelines. This ensures that every speech segment generated is studio-quality and ready for professional use cases like podcasting or high-end virtual assistants that require the highest possible sonic clarity.

Can the 02 model handle real-time interruptions?

Yes. With a latency of approximately 210ms, it is significantly faster than many alternatives. This ultra-low latency allows the speech system to respond almost instantly to text inputs, making it perfect for conversational AI where human-like timing and the ability to handle interruptions are critical for a natural user experience. It ensures your text-to-voice transition feels like a real conversation.

Is voice cloning possible with this speech engine?

Absolutely. Text Speech 02 can clone a specific voice using a mere 3-second audio sample. Unlike other models that require minutes of data, this 02-hd variant captures emotional range and timbre quickly, allowing for highly personalized text-to-audio transitions that maintain the original speaker's unique vocal characteristics across different scripts and text inputs without losing the emotional core of the performance.

Which languages does the 02 model support?

It supports over 30 languages, including English, Chinese, Japanese, and several European languages. The 02 architecture allows for seamless bilingual switching within a single sentence. This ensures that the text being read maintains consistent voice quality and accent even when navigating between different linguistic structures, making it an ideal choice for global text localization and accessibility projects.

Does the API support streaming for long text?

Yes, it supports native streaming via WebSocket and Chunked HTTP. This is ideal for synthesizing long-form text or documents. While individual requests can handle up to 10 minutes of audio, the streaming capability allows for virtually unlimited output duration, ensuring the speech remains stable and rhythmic even during extended playback sessions without any degradation in the generated text quality or sound.

How is my data handled by the speech-02-hd model?

Privacy is a priority. All audio data processed through the Text Speech 02 model on our platform is ephemeral. We do not use your inputs or generated outputs for training purposes. This makes it a trustworthy choice for enterprise-level applications where sensitive text must be converted into high-quality speech without risk of data leakage or unauthorized access to your proprietary text-based content.

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