MiniMax
Speech 2.5 HD Preview Voice Clone
speech 2.5 voice technology offers ultra-low latency and 48kHz HD output. This preview model by ByteDance enables instant zero-shot voice cloning with just 3 seconds of audio, perfect for high-end content and real-time AI assistants.

Modalities

Input: TextInput: Audio
Output: Audio

API Usage Examples
curl --request POST "https://gptproto.com/api/v3/minimax/speech-2.5-hd-preview-voice-clone/text-to-audio" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "audio": "",
    "custom_voice_id": "",
    "need_noise_reduction": false,
    "need_volume_normalization": false,
    "accuracy": 0.7,
    "text": "Hello! Welcome to GPT Proto! This is a preview of your cloned voice. I hope you enjoy it!"
  }'
Speech 2.5 HD Preview Voice Clone 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$0.5003$0.8338

Top up

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

Save$65.93 (40%)vs MiniMax official

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Speech 2.6 HD
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GPT 4o Mini TTS
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Gemini 2.5 Pro Preview TTS
$0.60 / $12.00 per 1M—
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Speech 2.5 Turbo Preview
— / $36.00 per 1M—
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Speech 2.5 Turbo Preview Voice Clone
$0.50 per time—
Input: TextInput: Audio
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speech 2.5 voice Technical Features

Key technical advantages of the speech 2.5 voice model for HD audio production.

Zero-Shot Voice Cloning

Clone any voice with a 5-second snippet. No training needed for high-fidelity replication of timbre and emotion.

48kHz High-Definition Audio

Studio-quality 48kHz output ensures your AI-generated audio is ready for professional broadcasting and podcasts.

Cross-Lingual Synthesis

Clone a speaker in one language and generate audio in another while keeping their unique accent consistent.

Ultra-Low Latency Streaming

Optimized for real-time use with a Time To First Chunk under 300ms, ideal for conversational AI and live NPCs.

speech 2.5 voice FAQ & Support

Common questions about speech 2.5 voice cloning, latency, and HD audio quality for developers.

How fast is speech 2.5 voice synthesis?

The speech 2.5 voice model is built for speed. It features a Time To First Chunk of under 300ms in optimal conditions. This makes it significantly faster than many competitors, including ElevenLabs v2.5. For developers building real-time conversational agents or interactive gaming NPCs, this low-latency performance ensures that the AI response feels natural and immediate without awkward pauses between the text input and audio output.

Does speech 2.5 voice support 48kHz audio?

Yes, the speech 2.5 voice HD variant supports high-fidelity 48kHz sampling rates. This is a major upgrade over standard 24kHz models, providing studio-quality audio suitable for professional broadcasting, podcasting, and high-end video production. When you need clear, crisp, and professional-grade speech synthesis that doesn't sound compressed or artificial, the HD output of this model is the industry-leading choice for creators.

Is zero-shot cloning available in speech 2.5 voice?

Absolutely. One of the strongest features of the speech 2.5 voice engine is its zero-shot instant cloning capability. You only need a 3 to 30-second reference audio clip to replicate a specific timbre, prosody, and emotional tone. No fine-tuning or extensive training is required. This allows for immediate deployment of personalized voices for assistants or localized content while maintaining the original speaker's unique vocal identity.

What languages does speech 2.5 voice support?

The speech 2.5 voice foundation model is inherently multilingual. It currently supports English, Chinese, Japanese, Korean, German, French, and Spanish. A standout feature is cross-lingual synthesis: you can provide a reference voice in English and generate fluent speech in Spanish or Chinese. The model preserves the speaker's unique accent and characteristics across different languages, making it a powerful tool for global content dubbing.

Can I control emotions in speech 2.5 voice?

Yes. Developers can use specific text tags or parameters to guide the emotional delivery of the speech 2.5 voice output. Whether you need a happy, serious, whispering, or excited tone, the model provides fine-grained prosody control. This dynamic emotion handling is essential for storytelling, gaming, and any application where the context of the message requires a specific vocal inflection to convey the right meaning and impact.

How is speech 2.5 voice billed on GPTProto?

We offer a simplified billing model for speech 2.5 voice. It costs $25.00 per 1 million characters of input text, plus a small $0.02 fee per unique voice cloning processing. By using GPTProto.com, you avoid the high monthly minimum commitments often required by official enterprise contracts. We also offer a 30% discount on repetitive synthesis through context caching, ensuring you get the most cost-effective access to HD speech technology.

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